Add support for custom shaders
Custom shaders for models Postprocessig on FBO (in progress) Some useless spaces removed
This commit is contained in:
raysan5
parent
b9e53cd135
commit
42c92e4f2e
33
src/core.c
33
src/core.c
@ -154,7 +154,6 @@ static int gamepadStream = -1; // Gamepad device file descripto
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static EGLDisplay display; // Native display device (physical screen connection)
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static EGLSurface surface; // Surface to draw on, framebuffers (connected to context)
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static EGLContext context; // Graphic context, mode in which drawing can be done
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static uint64_t baseTime; // Base time measure for hi-res timer
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static bool windowShouldClose = false; // Flag to set window for closing
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#endif
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@ -207,6 +206,12 @@ static double targetTime = 0.0; // Desired time for one frame, if 0
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static char configFlags = 0;
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static bool showLogo = false;
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static bool customCamera = true;
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//static int cameraMode = CUSTOM; // FREE, FIRST_PERSON, THIRD_PERSON
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static bool enabledPostpro = false;
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static unsigned int fboShader = 0;
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//----------------------------------------------------------------------------------
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// Other Modules Functions Declaration (required by core)
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//----------------------------------------------------------------------------------
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@ -474,13 +479,15 @@ void BeginDrawing(void)
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updateTime = currentTime - previousTime;
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previousTime = currentTime;
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if (enabledPostpro) rlEnableFBO();
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rlClearScreenBuffers();
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rlLoadIdentity(); // Reset current matrix (MODELVIEW)
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rlMultMatrixf(GetMatrixVector(downscaleView)); // If downscale required, apply it here
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// rlTranslatef(0.375, 0.375, 0); // HACK to have 2D pixel-perfect drawing on OpenGL 1.1
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//rlTranslatef(0.375, 0.375, 0); // HACK to have 2D pixel-perfect drawing on OpenGL 1.1
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// NOTE: Not required with OpenGL 3.3+
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}
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@ -489,6 +496,9 @@ void EndDrawing(void)
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{
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rlglDraw(); // Draw Buffers (Only OpenGL 3+ and ES2)
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// TODO: Set postprocessing shader to be passed: SetPostproShader()?
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if (enabledPostpro) rlglDrawPostpro(fboShader); // Draw postprocessing effect (shader)
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SwapBuffers(); // Copy back buffer to front buffer
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PollInputEvents(); // Poll user events
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@ -533,8 +543,15 @@ void Begin3dMode(Camera camera)
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rlLoadIdentity(); // Reset current matrix (MODELVIEW)
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// Setup Camera view
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if (customCamera)
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{
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Matrix matLookAt = MatrixLookAt(camera.position, camera.target, camera.up);
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rlMultMatrixf(GetMatrixVector(matLookAt)); // Multiply MODELVIEW matrix by view matrix (camera)
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}
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else
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{
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// TODO: Add support for multiple automatic camera modes
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}
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}
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// Ends 3D mode and returns to default 2D orthographic mode
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@ -1188,6 +1205,18 @@ void InitGraphics(void)
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#endif
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}
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void InitPostShader(void)
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{
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rlglInitPostpro();
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enabledPostpro = true;
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}
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void SetPostShader(unsigned int shader)
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{
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fboShader = shader;
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}
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#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
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// GLFW3 Error Callback, runs on GLFW3 error
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static void ErrorCallback(int error, const char *description)
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12
src/raylib.h
12
src/raylib.h
@ -268,9 +268,15 @@ typedef struct Model {
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unsigned int vaoId;
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unsigned int vboId[4];
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unsigned int textureId;
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unsigned int shaderId;
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//Matrix transform;
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} Model;
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// Shader type
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typedef struct Shader {
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unsigned int id;
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} Shader;
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// Sound source type
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typedef struct Sound {
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unsigned int source;
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@ -334,6 +340,9 @@ Color Fade(Color color, float alpha); // Color fade-in or
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void SetupFlags(char flags); // Enable some window configurations
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void ShowLogo(void); // Activates raylib logo at startup (can be done with flags)
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void InitPostShader(void);
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void SetPostShader(unsigned int shader);
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//------------------------------------------------------------------------------------
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// Input Handling Functions (Module: core)
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//------------------------------------------------------------------------------------
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@ -466,6 +475,7 @@ Model LoadHeightmap(Image heightmap, float maxHeight);
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Model LoadCubicmap(Image cubicmap); // Load a map image as a 3d model (cubes based)
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void UnloadModel(Model model); // Unload 3d model from memory
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void SetModelTexture(Model *model, Texture2D texture); // Link a texture to a model
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void SetModelShader(Model *model, unsigned int shader);
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void DrawModel(Model model, Vector3 position, float scale, Color tint); // Draw a model (with texture if set)
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void DrawModelEx(Model model, Vector3 position, Vector3 rotation, Vector3 scale, Color tint); // Draw a model with extended parameters
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@ -474,6 +484,8 @@ void DrawModelWires(Model model, Vector3 position, float scale, Color color);
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void DrawBillboard(Camera camera, Texture2D texture, Vector3 center, float size, Color tint); // Draw a billboard texture
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void DrawBillboardRec(Camera camera, Texture2D texture, Rectangle sourceRec, Vector3 center, float size, Color tint); // Draw a billboard texture defined by sourceRec
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unsigned int LoadCustomShader(char *vsFileName, char *fsFileName); // Load a custom shader (vertex shader + fragment shader)
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//------------------------------------------------------------------------------------
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// Audio Loading and Playing Functions (Module: audio)
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//------------------------------------------------------------------------------------
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490
src/rlgl.c
490
src/rlgl.c
@ -164,6 +164,12 @@ static GLuint simpleVertexLoc, simpleTexcoordLoc, simpleNormalLoc, simpleColorLo
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static GLuint simpleProjectionMatrixLoc, simpleModelviewMatrixLoc;
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static GLuint simpleTextureLoc;
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// Custom Shader program attibutes binding locations
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static GLuint customVertexLoc, customTexcoordLoc, customNormalLoc, customColorLoc;
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static GLuint customProjectionMatrixLoc, customModelviewMatrixLoc;
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static GLuint customTextureLoc;
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static bool customShader = false;
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// Vertex Array Objects (VAO)
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static GLuint vaoLines, vaoTriangles, vaoQuads;
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@ -182,6 +188,9 @@ static bool useTempBuffer = false;
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// Support for VAOs (OpenGL ES2 could not support VAO extensions)
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static bool vaoSupported = false;
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// Framebuffer object and texture
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static GLuint fbo, fboColorTexture, fboDepthTexture, fboShader = 0;
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#endif
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#if defined(GRAPHICS_API_OPENGL_ES2)
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@ -208,7 +217,6 @@ static void InitializeBuffersGPU(void);
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static void UpdateBuffers(void);
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// Custom shader files loading (external)
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static GLuint LoadCustomShader(char *vertexFileName, char *fragmentFileName);
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static char *TextFileRead(char *fn);
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#endif
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@ -696,6 +704,17 @@ void rlDeleteTextures(unsigned int id)
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glDeleteTextures(1, &id);
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}
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// Unload shader from GPU memory
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void rlDeleteShader(unsigned int id)
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{
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glDeleteProgram(id);
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}
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void rlEnableFBO(void)
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{
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glBindFramebuffer(GL_FRAMEBUFFER, fbo);
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}
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// Unload vertex data (VAO) from GPU memory
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void rlDeleteVertexArrays(unsigned int id)
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{
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@ -851,7 +870,8 @@ void rlglInit(void)
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// Init default Shader (GLSL 110) -> Common for GL 3.3+ and ES2
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defaultShaderProgram = LoadDefaultShader();
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simpleShaderProgram = LoadSimpleShader();
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//customShaderProgram = LoadShaders("simple150.vert", "simple150.frag");
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//simpleShaderProgram = LoadCustomShader("custom.vs", "custom.fs"); // Works ok
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//customShaderProgram = LoadCustomShader("simple150.vert", "simple150.frag");
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// Get handles to GLSL input vars locations for defaultShaderProgram
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//-------------------------------------------------------------------
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@ -912,6 +932,49 @@ void rlglInit(void)
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#endif
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}
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// Init postpro system
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void rlglInitPostpro(void)
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{
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// Create the texture that will serve as the color attachment for the framebuffer
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glGenTextures(1, &fboColorTexture);
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glBindTexture(GL_TEXTURE_2D, fboColorTexture);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, GetScreenWidth(), GetScreenHeight(), 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
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glBindTexture(GL_TEXTURE_2D, 0);
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// Create the texture that will serve as the depth attachment for the framebuffer.
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glGenTextures(1, &fboDepthTexture);
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glBindTexture(GL_TEXTURE_2D, fboDepthTexture);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, GetScreenWidth(), GetScreenHeight(), 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, NULL);
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glBindTexture(GL_TEXTURE_2D, 0);
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// Create the framebuffer object
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glGenFramebuffers(1, &fbo);
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glBindFramebuffer(GL_FRAMEBUFFER, fbo);
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// Attach colort texture and depth texture to FBO
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glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, fboColorTexture, 0);
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glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, fboDepthTexture, 0);
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GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
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if (status != GL_FRAMEBUFFER_COMPLETE) TraceLog(WARNING, "Framebuffer object could not be created...");
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else TraceLog(INFO, "[FBO ID %i] Framebuffer object created successfully", fbo);
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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fboShader = 0;
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// TODO: Init simple quad VAO and data here?
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}
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// Vertex Buffer Object deinitialization (memory free)
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void rlglClose(void)
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{
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@ -950,6 +1013,7 @@ void rlglClose(void)
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//glDeleteShader(v);
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//glDeleteShader(f);
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glDeleteProgram(defaultShaderProgram);
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glDeleteProgram(simpleShaderProgram);
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// Free vertex arrays memory
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free(lines.vertices);
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@ -966,6 +1030,8 @@ void rlglClose(void)
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// Free GPU texture
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glDeleteTextures(1, &whiteTexture);
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if (fbo != 0) glDeleteFramebuffers(1, &fbo);
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free(draws);
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#endif
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}
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@ -977,7 +1043,10 @@ void rlglDraw(void)
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if ((lines.vCounter > 0) || (triangles.vCounter > 0) || (quads.vCounter > 0))
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{
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glUseProgram(defaultShaderProgram); // Use our shader
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if (fbo == 0) glUseProgram(defaultShaderProgram); // Use our default shader
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else glUseProgram(fboShader); // Use our postpro shader
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glUseProgram(defaultShaderProgram);
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glUniformMatrix4fv(defaultProjectionMatrixLoc, 1, false, GetMatrixVector(projection));
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glUniformMatrix4fv(defaultModelviewMatrixLoc, 1, false, GetMatrixVector(modelview));
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@ -1116,6 +1185,67 @@ void rlglDraw(void)
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#endif
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}
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void rlglDrawPostpro(unsigned int shaderId)
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{
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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// TODO: Draw screen quad with texture
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/*
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const float quadPositions[] = { 1.0, 1.0, 0.0, -1.0, 1.0, 0.0, -1.0, -1.0, 0.0,
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-1.0, -1.0, 0.0, 1.0, -1.0, 0.0, 1.0, 1.0, 0.0 };
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const float quadTexcoords[] = { 1.0, 1.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 1.0, 1.0 };
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glBindBuffer(GL_ARRAY_BUFFER, quadVbo);
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glVertexAttribPointer(ATTRIB_VERTEX, 3, GL_FLOAT, GL_FALSE, 3*sizeof(float), quadPositions);
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glVertexAttribPointer(ATTRIB_TEXCOORD0, 2, GL_FLOAT, GL_FALSE, 2*sizeof(float), quadTexcoords);
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glEnableVertexAttribArray(ATTRIB_VERTEX);
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glEnableVertexAttribArray(ATTRIB_TEXCOORD0);
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glBindTexture(GL_TEXTURE_2D, fboColorTexture);
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glDrawArrays(GL_TRIANGLES, 0, 2*3);
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// Quad render using triangle strip
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glBindBuffer(GL_ARRAY_BUFFER, uiVBO[1]);
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glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, 0);
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glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
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glBindBuffer(GL_ARRAY_BUFFER, 0);
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glBindTexture(GL_TEXTURE_2D, 0);
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glUseProgram(0);
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*/
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rlEnableTexture(fboColorTexture);
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rlPushMatrix();
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rlBegin(RL_QUADS);
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rlColor4ub(255, 255, 255, 255);
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rlNormal3f(0.0f, 0.0f, 1.0f); // Normal vector pointing towards viewer
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// Bottom-left corner for texture and quad
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rlTexCoord2f(0.0f, 1.0f);
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rlVertex2f(0.0f, 0.0f);
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// Bottom-right corner for texture and quad
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rlTexCoord2f(0.0f, 0.0f);
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rlVertex2f(0.0f, GetScreenHeight());
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// Top-right corner for texture and quad
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rlTexCoord2f(1.0f, 0.0f);
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rlVertex2f(GetScreenWidth(), GetScreenHeight());
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// Top-left corner for texture and quad
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rlTexCoord2f(1.0f, 1.0f);
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rlVertex2f(GetScreenWidth(), 0.0f);
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rlEnd();
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rlPopMatrix();
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fboShader = shaderId;
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rlglDraw();
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}
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// Draw a 3d model
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void rlglDrawModel(Model model, Vector3 position, Vector3 rotation, Vector3 scale, Color color, bool wires)
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{
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@ -1159,7 +1289,8 @@ void rlglDrawModel(Model model, Vector3 position, Vector3 rotation, Vector3 scal
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#endif
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#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)
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glUseProgram(simpleShaderProgram); // Use our simple shader
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if (customShader) glUseProgram(model.shaderId);
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else glUseProgram(simpleShaderProgram); // Use our simple shader
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VectorScale(&rotation, DEG2RAD);
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@ -1168,14 +1299,25 @@ void rlglDrawModel(Model model, Vector3 position, Vector3 rotation, Vector3 scal
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Matrix modelviewworld = MatrixMultiply(transform, modelview);
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// NOTE: Drawing in OpenGL 3.3+, transform is passed to shader
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if (customShader)
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{
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glUniformMatrix4fv(customProjectionMatrixLoc, 1, false, GetMatrixVector(projection));
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glUniformMatrix4fv(customModelviewMatrixLoc, 1, false, GetMatrixVector(modelviewworld));
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glUniform1i(customTextureLoc, 0);
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}
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else
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{
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glUniformMatrix4fv(simpleProjectionMatrixLoc, 1, false, GetMatrixVector(projection));
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glUniformMatrix4fv(simpleModelviewMatrixLoc, 1, false, GetMatrixVector(modelviewworld));
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glUniform1i(simpleTextureLoc, 0);
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}
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// Apply color tinting to model
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// NOTE: Just update one uniform on fragment shader
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float vColor[4] = { (float)color.r/255, (float)color.g/255, (float)color.b/255, (float)color.a/255 };
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glUniform4fv(simpleColorLoc, 1, vColor);
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if (customShader) glUniform4fv(customColorLoc, 1, vColor);
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else glUniform4fv(simpleColorLoc, 1, vColor);
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if (vaoSupported)
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{
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@ -1376,7 +1518,7 @@ Model rlglLoadModel(VertexData mesh)
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model.vboId[2] = 0; // Normals VBO
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#elif defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)
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model.textureId = 1; // Default whiteTexture
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model.textureId = whiteTexture; // Default whiteTexture
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GLuint vaoModel = 0; // Vertex Array Objects (VAO)
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GLuint vertexBuffer[3]; // Vertex Buffer Objects (VBO)
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@ -1510,6 +1652,102 @@ unsigned int rlglLoadCompressedTexture(unsigned char *data, int width, int heigh
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return id;
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}
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// Load a shader (vertex shader + fragment shader) from text data
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unsigned int rlglLoadShader(char *vShaderStr, char *fShaderStr)
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{
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unsigned int program;
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GLuint vertexShader;
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GLuint fragmentShader;
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vertexShader = glCreateShader(GL_VERTEX_SHADER);
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fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
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const char *pvs = vShaderStr;
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const char *pfs = fShaderStr;
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glShaderSource(vertexShader, 1, &pvs, NULL);
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glShaderSource(fragmentShader, 1, &pfs, NULL);
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GLint success = 0;
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glCompileShader(vertexShader);
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glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &success);
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if (success != GL_TRUE)
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{
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TraceLog(WARNING, "[VSHDR ID %i] Failed to compile vertex shader...", vertexShader);
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int maxLength = 0;
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int length;
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glGetShaderiv(vertexShader, GL_INFO_LOG_LENGTH, &maxLength);
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char log[maxLength];
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glGetShaderInfoLog(vertexShader, maxLength, &length, log);
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TraceLog(INFO, "%s", log);
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}
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else TraceLog(INFO, "[VSHDR ID %i] Vertex shader compiled successfully", vertexShader);
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glCompileShader(fragmentShader);
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glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &success);
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if (success != GL_TRUE)
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{
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TraceLog(WARNING, "[FSHDR ID %i] Failed to compile fragment shader...", fragmentShader);
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int maxLength = 0;
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int length;
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||||
glGetShaderiv(fragmentShader, GL_INFO_LOG_LENGTH, &maxLength);
|
||||
|
||||
char log[maxLength];
|
||||
|
||||
glGetShaderInfoLog(fragmentShader, maxLength, &length, log);
|
||||
|
||||
TraceLog(INFO, "%s", log);
|
||||
}
|
||||
else TraceLog(INFO, "[FSHDR ID %i] Fragment shader compiled successfully", fragmentShader);
|
||||
|
||||
program = glCreateProgram();
|
||||
|
||||
glAttachShader(program, vertexShader);
|
||||
glAttachShader(program, fragmentShader);
|
||||
|
||||
glLinkProgram(program);
|
||||
|
||||
glGetProgramiv(program, GL_LINK_STATUS, &success);
|
||||
|
||||
if (success == GL_FALSE)
|
||||
{
|
||||
TraceLog(WARNING, "[SHDR ID %i] Failed to link shader program...", program);
|
||||
|
||||
int maxLength = 0;
|
||||
int length;
|
||||
|
||||
glGetProgramiv(program, GL_INFO_LOG_LENGTH, &maxLength);
|
||||
|
||||
char log[maxLength];
|
||||
|
||||
glGetProgramInfoLog(program, maxLength, &length, log);
|
||||
|
||||
TraceLog(INFO, "%s", log);
|
||||
|
||||
glDeleteProgram(program);
|
||||
|
||||
program = 0;
|
||||
}
|
||||
else TraceLog(INFO, "[SHDR ID %i] Shader program loaded successfully", program);
|
||||
|
||||
glDeleteShader(vertexShader);
|
||||
glDeleteShader(fragmentShader);
|
||||
|
||||
return program;
|
||||
}
|
||||
|
||||
// Read screen pixel data (color buffer)
|
||||
unsigned char *rlglReadScreenPixels(int width, int height)
|
||||
{
|
||||
@ -1534,6 +1772,66 @@ unsigned char *rlglReadScreenPixels(int width, int height)
|
||||
return imgData; // NOTE: image data should be freed
|
||||
}
|
||||
|
||||
unsigned int LoadCustomShader(char *vsFileName, char *fsFileName)
|
||||
{
|
||||
// Shaders loading from external text file
|
||||
char *vShaderStr = TextFileRead(vsFileName);
|
||||
char *fShaderStr = TextFileRead(fsFileName);
|
||||
|
||||
unsigned int shaderId = rlglLoadShader(vShaderStr, fShaderStr);
|
||||
|
||||
if (shaderId != 0) TraceLog(INFO, "[SHDR ID %i] Custom shader loaded successfully", shaderId);
|
||||
else TraceLog(WARNING, "[SHDR ID %i] Custom shader could not be loaded", shaderId);
|
||||
|
||||
return shaderId;
|
||||
|
||||
// Shader strings must be freed
|
||||
free(vShaderStr);
|
||||
free(fShaderStr);
|
||||
|
||||
return shaderId;
|
||||
}
|
||||
|
||||
// Link shader to model
|
||||
void SetModelShader(Model *model, unsigned int shader)
|
||||
{
|
||||
// Get handles to GLSL input vars locations for simpleShaderProgram
|
||||
customVertexLoc = glGetAttribLocation(shader, "vertexPosition");
|
||||
customTexcoordLoc = glGetAttribLocation(shader, "vertexTexCoord");
|
||||
customNormalLoc = glGetAttribLocation(shader, "vertexNormal");
|
||||
|
||||
// Get handles to GLSL uniform vars locations (vertex-shader)
|
||||
customModelviewMatrixLoc = glGetUniformLocation(shader, "modelviewMatrix");
|
||||
customProjectionMatrixLoc = glGetUniformLocation(shader, "projectionMatrix");
|
||||
|
||||
// Get handles to GLSL uniform vars locations (fragment-shader)
|
||||
customTextureLoc = glGetUniformLocation(shader, "texture0");
|
||||
customColorLoc = glGetUniformLocation(shader, "fragColor");
|
||||
|
||||
if (vaoSupported) glBindVertexArray(model->vaoId);
|
||||
|
||||
// Enable vertex attributes: position
|
||||
glBindBuffer(GL_ARRAY_BUFFER, model->vboId[0]);
|
||||
glEnableVertexAttribArray(customVertexLoc);
|
||||
glVertexAttribPointer(customVertexLoc, 3, GL_FLOAT, 0, 0, 0);
|
||||
|
||||
// Enable vertex attributes: texcoords
|
||||
glBindBuffer(GL_ARRAY_BUFFER, model->vboId[1]);
|
||||
glEnableVertexAttribArray(customTexcoordLoc);
|
||||
glVertexAttribPointer(customTexcoordLoc, 2, GL_FLOAT, 0, 0, 0);
|
||||
|
||||
// Enable vertex attributes: normals
|
||||
glBindBuffer(GL_ARRAY_BUFFER, model->vboId[2]);
|
||||
glEnableVertexAttribArray(customNormalLoc);
|
||||
glVertexAttribPointer(customNormalLoc, 3, GL_FLOAT, 0, 0, 0);
|
||||
|
||||
if (vaoSupported) glBindVertexArray(0); // Unbind VAO
|
||||
|
||||
model->shaderId = shader;
|
||||
|
||||
customShader = true;
|
||||
}
|
||||
|
||||
#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)
|
||||
|
||||
void PrintProjectionMatrix()
|
||||
@ -1559,10 +1857,12 @@ void PrintModelviewMatrix()
|
||||
static GLuint LoadDefaultShader(void)
|
||||
{
|
||||
// NOTE: Shaders are written using GLSL 110 (desktop), that is equivalent to GLSL 100 on ES2
|
||||
// NOTE: Detected an error on ATI cards if defined #version 110 while OpenGL 3.3+
|
||||
// Just defined #version 330 despite shader is #version 110
|
||||
|
||||
// Vertex shader directly defined, no external file required
|
||||
#if defined(GRAPHICS_API_OPENGL_33)
|
||||
char vShaderStr[] = " #version 110 \n" // NOTE: Equivalent to version 100 on ES2
|
||||
char vShaderStr[] = " #version 330 \n" // NOTE: Actually, #version 110 (quivalent to #version 100 on ES2)
|
||||
#elif defined(GRAPHICS_API_OPENGL_ES2)
|
||||
char vShaderStr[] = " #version 100 \n" // NOTE: Must be defined this way! 110 doesn't work!
|
||||
#endif
|
||||
@ -1582,7 +1882,7 @@ static GLuint LoadDefaultShader(void)
|
||||
|
||||
// Fragment shader directly defined, no external file required
|
||||
#if defined(GRAPHICS_API_OPENGL_33)
|
||||
char fShaderStr[] = " #version 110 \n" // NOTE: Equivalent to version 100 on ES2
|
||||
char fShaderStr[] = " #version 330 \n" // NOTE: Actually, #version 110 (quivalent to #version 100 on ES2)
|
||||
#elif defined(GRAPHICS_API_OPENGL_ES2)
|
||||
char fShaderStr[] = " #version 100 \n" // NOTE: Must be defined this way! 110 doesn't work!
|
||||
"precision mediump float; \n" // WebGL, required for emscripten
|
||||
@ -1595,63 +1895,12 @@ static GLuint LoadDefaultShader(void)
|
||||
" gl_FragColor = texture2D(texture0, fragTexCoord) * fragColor; \n"
|
||||
"} \n";
|
||||
|
||||
GLuint program;
|
||||
GLuint vertexShader;
|
||||
GLuint fragmentShader;
|
||||
unsigned int shaderId = rlglLoadShader(vShaderStr, fShaderStr);
|
||||
|
||||
vertexShader = glCreateShader(GL_VERTEX_SHADER);
|
||||
fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
|
||||
if (shaderId != 0) TraceLog(INFO, "[SHDR ID %i] Default shader loaded successfully", shaderId);
|
||||
else TraceLog(WARNING, "[SHDR ID %i] Default shader could not be loaded", shaderId);
|
||||
|
||||
const char *pvs = vShaderStr;
|
||||
const char *pfs = fShaderStr;
|
||||
|
||||
glShaderSource(vertexShader, 1, &pvs, NULL);
|
||||
glShaderSource(fragmentShader, 1, &pfs, NULL);
|
||||
|
||||
GLint success = 0;
|
||||
|
||||
glCompileShader(vertexShader);
|
||||
|
||||
glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &success);
|
||||
|
||||
if (success != GL_TRUE) TraceLog(WARNING, "[VSHDR ID %i] Failed to compile default vertex shader...", vertexShader);
|
||||
else TraceLog(INFO, "[VSHDR ID %i] Default vertex shader compiled successfully", vertexShader);
|
||||
|
||||
glCompileShader(fragmentShader);
|
||||
|
||||
glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &success);
|
||||
|
||||
if (success != GL_TRUE) TraceLog(WARNING, "[FSHDR ID %i] Failed to compile default fragment shader...", fragmentShader);
|
||||
else TraceLog(INFO, "[FSHDR ID %i] Default fragment shader compiled successfully", fragmentShader);
|
||||
|
||||
program = glCreateProgram();
|
||||
|
||||
glAttachShader(program, vertexShader);
|
||||
glAttachShader(program, fragmentShader);
|
||||
|
||||
glLinkProgram(program);
|
||||
|
||||
glGetProgramiv(program, GL_LINK_STATUS, &success);
|
||||
|
||||
if (success == GL_FALSE)
|
||||
{
|
||||
int maxLength;
|
||||
int length;
|
||||
|
||||
glGetProgramiv(program, GL_INFO_LOG_LENGTH, &maxLength);
|
||||
|
||||
char log[maxLength];
|
||||
|
||||
glGetProgramInfoLog(program, maxLength, &length, log);
|
||||
|
||||
TraceLog(INFO, "Shader program fail log: %s", log);
|
||||
}
|
||||
else TraceLog(INFO, "[SHDR ID %i] Default shader program loaded successfully", program);
|
||||
|
||||
glDeleteShader(vertexShader);
|
||||
glDeleteShader(fragmentShader);
|
||||
|
||||
return program;
|
||||
return shaderId;
|
||||
}
|
||||
|
||||
// Load Simple Shader (Vertex and Fragment)
|
||||
@ -1659,10 +1908,12 @@ static GLuint LoadDefaultShader(void)
|
||||
static GLuint LoadSimpleShader(void)
|
||||
{
|
||||
// NOTE: Shaders are written using GLSL 110 (desktop), that is equivalent to GLSL 100 on ES2
|
||||
// NOTE: Detected an error on ATI cards if defined #version 110 while OpenGL 3.3+
|
||||
// Just defined #version 330 despite shader is #version 110
|
||||
|
||||
// Vertex shader directly defined, no external file required
|
||||
#if defined(GRAPHICS_API_OPENGL_33)
|
||||
char vShaderStr[] = " #version 110 \n" // NOTE: Equivalent to version 100 on ES2
|
||||
char vShaderStr[] = " #version 330 \n" // NOTE: Actually, #version 110 (quivalent to #version 100 on ES2)
|
||||
#elif defined(GRAPHICS_API_OPENGL_ES2)
|
||||
char vShaderStr[] = " #version 100 \n" // NOTE: Must be defined this way! 110 doesn't work!
|
||||
#endif
|
||||
@ -1680,7 +1931,7 @@ static GLuint LoadSimpleShader(void)
|
||||
|
||||
// Fragment shader directly defined, no external file required
|
||||
#if defined(GRAPHICS_API_OPENGL_33)
|
||||
char fShaderStr[] = " #version 110 \n" // NOTE: Equivalent to version 100 on ES2
|
||||
char fShaderStr[] = " #version 330 \n" // NOTE: Actually, #version 110 (quivalent to #version 100 on ES2)
|
||||
#elif defined(GRAPHICS_API_OPENGL_ES2)
|
||||
char fShaderStr[] = " #version 100 \n" // NOTE: Must be defined this way! 110 doesn't work!
|
||||
"precision mediump float; \n" // precision required for OpenGL ES2 (WebGL)
|
||||
@ -1693,117 +1944,22 @@ static GLuint LoadSimpleShader(void)
|
||||
" gl_FragColor = texture2D(texture0, fragTexCoord) * fragColor; \n"
|
||||
"} \n";
|
||||
|
||||
GLuint program;
|
||||
GLuint vertexShader;
|
||||
GLuint fragmentShader;
|
||||
unsigned int shaderId = rlglLoadShader(vShaderStr, fShaderStr);
|
||||
|
||||
vertexShader = glCreateShader(GL_VERTEX_SHADER);
|
||||
fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
|
||||
if (shaderId != 0) TraceLog(INFO, "[SHDR ID %i] Simple shader loaded successfully", shaderId);
|
||||
else TraceLog(WARNING, "[SHDR ID %i] Simple shader could not be loaded", shaderId);
|
||||
|
||||
const char *pvs = vShaderStr;
|
||||
const char *pfs = fShaderStr;
|
||||
|
||||
glShaderSource(vertexShader, 1, &pvs, NULL);
|
||||
glShaderSource(fragmentShader, 1, &pfs, NULL);
|
||||
|
||||
GLint success = 0;
|
||||
|
||||
glCompileShader(vertexShader);
|
||||
|
||||
glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &success);
|
||||
|
||||
if (success != GL_TRUE) TraceLog(WARNING, "[VSHDR ID %i] Failed to compile simple vertex shader...", vertexShader);
|
||||
else TraceLog(INFO, "[VSHDR ID %i] Simple vertex shader compiled successfully", vertexShader);
|
||||
|
||||
glCompileShader(fragmentShader);
|
||||
|
||||
glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &success);
|
||||
|
||||
if (success != GL_TRUE) TraceLog(WARNING, "[FSHDR ID %i] Failed to compile simple fragment shader...", fragmentShader);
|
||||
else TraceLog(INFO, "[FSHDR ID %i] Simple fragment shader compiled successfully", fragmentShader);
|
||||
|
||||
program = glCreateProgram();
|
||||
|
||||
glAttachShader(program, vertexShader);
|
||||
glAttachShader(program, fragmentShader);
|
||||
|
||||
glLinkProgram(program);
|
||||
|
||||
glGetProgramiv(program, GL_LINK_STATUS, &success);
|
||||
|
||||
if (success == GL_FALSE)
|
||||
{
|
||||
int maxLength;
|
||||
int length;
|
||||
|
||||
glGetProgramiv(program, GL_INFO_LOG_LENGTH, &maxLength);
|
||||
|
||||
char log[maxLength];
|
||||
|
||||
glGetProgramInfoLog(program, maxLength, &length, log);
|
||||
|
||||
TraceLog(INFO, "Shader program fail log: %s", log);
|
||||
}
|
||||
else TraceLog(INFO, "[SHDR ID %i] Simple shader program loaded successfully", program);
|
||||
|
||||
glDeleteShader(vertexShader);
|
||||
glDeleteShader(fragmentShader);
|
||||
|
||||
return program;
|
||||
return shaderId;
|
||||
}
|
||||
|
||||
// Load shaders from text files
|
||||
static GLuint LoadCustomShader(char *vertexFileName, char *fragmentFileName)
|
||||
{
|
||||
// Shaders loading from external text file
|
||||
char *vShaderStr = TextFileRead(vertexFileName);
|
||||
char *fShaderStr = TextFileRead(fragmentFileName);
|
||||
|
||||
GLuint program;
|
||||
GLuint vertexShader;
|
||||
GLuint fragmentShader;
|
||||
|
||||
vertexShader = glCreateShader(GL_VERTEX_SHADER);
|
||||
fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
|
||||
|
||||
const char *pvs = vShaderStr;
|
||||
const char *pfs = fShaderStr;
|
||||
|
||||
glShaderSource(vertexShader, 1, &pvs, NULL);
|
||||
glShaderSource(fragmentShader, 1, &pfs, NULL);
|
||||
|
||||
glCompileShader(vertexShader);
|
||||
glCompileShader(fragmentShader);
|
||||
|
||||
TraceLog(INFO, "[VSHDR ID %i] Vertex shader compiled successfully", vertexShader);
|
||||
TraceLog(INFO, "[FSHDR ID %i] Fragment shader compiled successfully", fragmentShader);
|
||||
|
||||
program = glCreateProgram();
|
||||
|
||||
glAttachShader(program, vertexShader);
|
||||
glAttachShader(program, fragmentShader);
|
||||
|
||||
glLinkProgram(program);
|
||||
|
||||
glDeleteShader(vertexShader);
|
||||
glDeleteShader(fragmentShader);
|
||||
|
||||
free(vShaderStr);
|
||||
free(fShaderStr);
|
||||
|
||||
TraceLog(INFO, "[SHDR ID %i] Shader program loaded successfully", program);
|
||||
|
||||
return program;
|
||||
}
|
||||
|
||||
// Read shader text file
|
||||
// Read text file
|
||||
// NOTE: text chars array should be freed manually
|
||||
static char *TextFileRead(char *fileName)
|
||||
{
|
||||
FILE *textFile;
|
||||
char *text = NULL;
|
||||
|
||||
int count=0;
|
||||
int count = 0;
|
||||
|
||||
if (fileName != NULL)
|
||||
{
|
||||
@ -1817,7 +1973,7 @@ static char *TextFileRead(char *fileName)
|
||||
|
||||
if (count > 0)
|
||||
{
|
||||
text = (char *)malloc(sizeof(char) * (count+1));
|
||||
text = (char *)malloc(sizeof(char) * (count + 1));
|
||||
count = fread(text, sizeof(char), count, textFile);
|
||||
text[count] = '\0';
|
||||
}
|
||||
|
||||
@ -145,22 +145,27 @@ void rlColor4f(float x, float y, float z, float w); // Define one vertex (color)
|
||||
void rlEnableTexture(unsigned int id); // Enable texture usage
|
||||
void rlDisableTexture(void); // Disable texture usage
|
||||
void rlDeleteTextures(unsigned int id); // Delete OpenGL texture from GPU
|
||||
void rlDeleteShader(unsigned int id); // Delete OpenGL shader program from GPU
|
||||
void rlDeleteVertexArrays(unsigned int id); // Unload vertex data (VAO) from GPU memory
|
||||
void rlDeleteBuffers(unsigned int id); // Unload vertex data (VBO) from GPU memory
|
||||
void rlClearColor(byte r, byte g, byte b, byte a); // Clear color buffer with color
|
||||
void rlClearScreenBuffers(void); // Clear used screen buffers (color and depth)
|
||||
int rlGetVersion(void); // Returns current OpenGL version
|
||||
void rlEnableFBO(void);
|
||||
|
||||
//------------------------------------------------------------------------------------
|
||||
// Functions Declaration - rlgl functionality
|
||||
//------------------------------------------------------------------------------------
|
||||
void rlglInit(void); // Initialize rlgl (shaders, VAO, VBO...)
|
||||
void rlglInitPostpro(void); // Initialize postprocessing system
|
||||
void rlglClose(void); // De-init rlgl
|
||||
void rlglDraw(void); // Draw VAO/VBO
|
||||
void rlglDrawPostpro(unsigned int shaderId); // Draw with postpro shader
|
||||
void rlglInitGraphics(int offsetX, int offsetY, int width, int height); // Initialize Graphics (OpenGL stuff)
|
||||
|
||||
unsigned int rlglLoadTexture(unsigned char *data, int width, int height, bool genMipmaps); // Load in GPU OpenGL texture
|
||||
unsigned int rlglLoadCompressedTexture(unsigned char *data, int width, int height, int mipmapCount, int format);
|
||||
unsigned int rlglLoadShader(char *vShaderStr, char *fShaderStr); // Load a shader from text data
|
||||
|
||||
Model rlglLoadModel(VertexData mesh); // Upload vertex data into GPU and provided VAO/VBO ids
|
||||
void rlglDrawModel(Model model, Vector3 position, Vector3 rotation, Vector3 scale, Color color, bool wires);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user