diff --git a/src/models.c b/src/models.c index 9b139120..4aff7216 100644 --- a/src/models.c +++ b/src/models.c @@ -575,6 +575,89 @@ Model LoadModelEx(Mesh data) return model; } +// Load a 3d model from rRES file (raylib Resource) +Model LoadModelFromRES(const char *rresName, int resId) +{ + Model model = { 0 }; + bool found = false; + + char id[4]; // rRES file identifier + unsigned char version; // rRES file version and subversion + char useless; // rRES header reserved data + short numRes; + + ResInfoHeader infoHeader; + + FILE *rresFile = fopen(rresName, "rb"); + + if (rresFile == NULL) + { + TraceLog(WARNING, "[%s] rRES raylib resource file could not be opened", rresName); + } + else + { + // Read rres file (basic file check - id) + fread(&id[0], sizeof(char), 1, rresFile); + fread(&id[1], sizeof(char), 1, rresFile); + fread(&id[2], sizeof(char), 1, rresFile); + fread(&id[3], sizeof(char), 1, rresFile); + fread(&version, sizeof(char), 1, rresFile); + fread(&useless, sizeof(char), 1, rresFile); + + if ((id[0] != 'r') && (id[1] != 'R') && (id[2] != 'E') &&(id[3] != 'S')) + { + TraceLog(WARNING, "[%s] This is not a valid raylib resource file", rresName); + } + else + { + // Read number of resources embedded + fread(&numRes, sizeof(short), 1, rresFile); + + for (int i = 0; i < numRes; i++) + { + fread(&infoHeader, sizeof(ResInfoHeader), 1, rresFile); + + if (infoHeader.id == resId) + { + found = true; + + // Check data is of valid MODEL type + if (infoHeader.type == 8) + { + // TODO: Load model data + } + else + { + TraceLog(WARNING, "[%s] Required resource do not seem to be a valid MODEL resource", rresName); + } + } + else + { + // Depending on type, skip the right amount of parameters + switch (infoHeader.type) + { + case 0: fseek(rresFile, 6, SEEK_CUR); break; // IMAGE: Jump 6 bytes of parameters + case 1: fseek(rresFile, 6, SEEK_CUR); break; // SOUND: Jump 6 bytes of parameters + case 2: fseek(rresFile, 5, SEEK_CUR); break; // MODEL: Jump 5 bytes of parameters (TODO: Review) + case 3: break; // TEXT: No parameters + case 4: break; // RAW: No parameters + default: break; + } + + // Jump DATA to read next infoHeader + fseek(rresFile, infoHeader.size, SEEK_CUR); + } + } + } + + fclose(rresFile); + } + + if (!found) TraceLog(WARNING, "[%s] Required resource id [%i] could not be found in the raylib resource file", rresName, resId); + + return model; +} + // Load a heightmap image as a 3d model // NOTE: model map size is defined in generic units Model LoadHeightmap(Image heightmap, Vector3 size) @@ -613,18 +696,18 @@ void UnloadModel(Model model) free(model.mesh.vertices); free(model.mesh.texcoords); free(model.mesh.normals); - free(model.mesh.colors); - //if (model.mesh.texcoords2 != NULL) free(model.mesh.texcoords2); // Not used - //if (model.mesh.tangents != NULL) free(model.mesh.tangents); // Not used + if (model.mesh.colors != NULL) free(model.mesh.colors); + if (model.mesh.tangents != NULL) free(model.mesh.tangents); + if (model.mesh.texcoords2 != NULL) free(model.mesh.texcoords2); TraceLog(INFO, "Unloaded model data from RAM (CPU)"); rlDeleteBuffers(model.mesh.vboId[0]); // vertex rlDeleteBuffers(model.mesh.vboId[1]); // texcoords rlDeleteBuffers(model.mesh.vboId[2]); // normals - //rlDeleteBuffers(model.mesh.vboId[3]); // colors (NOT USED) - //rlDeleteBuffers(model.mesh.vboId[4]); // tangents (NOT USED) - //rlDeleteBuffers(model.mesh.vboId[5]); // texcoords2 (NOT USED) + rlDeleteBuffers(model.mesh.vboId[3]); // colors + rlDeleteBuffers(model.mesh.vboId[4]); // tangents + rlDeleteBuffers(model.mesh.vboId[5]); // texcoords2 rlDeleteVertexArrays(model.mesh.vaoId); } @@ -672,7 +755,7 @@ static Mesh GenMeshHeightmap(Image heightmap, Vector3 size) { #define GRAY_VALUE(c) ((c.r+c.g+c.b)/3) - Mesh mesh; + Mesh mesh = { 0 }; int mapX = heightmap.width; int mapZ = heightmap.height; @@ -687,7 +770,7 @@ static Mesh GenMeshHeightmap(Image heightmap, Vector3 size) mesh.vertices = (float *)malloc(mesh.vertexCount*3*sizeof(float)); mesh.normals = (float *)malloc(mesh.vertexCount*3*sizeof(float)); mesh.texcoords = (float *)malloc(mesh.vertexCount*2*sizeof(float)); - mesh.colors = (unsigned char *)malloc(mesh.vertexCount*4*sizeof(unsigned char)); // Not used... + mesh.colors = NULL; int vCounter = 0; // Used to count vertices float by float int tcCounter = 0; // Used to count texcoords float by float @@ -770,16 +853,12 @@ static Mesh GenMeshHeightmap(Image heightmap, Vector3 size) free(pixels); - // Fill color data - // NOTE: Not used any more... just one plain color defined at DrawModel() - for (int i = 0; i < (4*mesh.vertexCount); i++) mesh.colors[i] = 255; - return mesh; } static Mesh GenMeshCubicmap(Image cubicmap, Vector3 cubeSize) { - Mesh mesh; + Mesh mesh = { 0 }; Color *cubicmapPixels = GetImageData(cubicmap); @@ -1088,11 +1167,7 @@ static Mesh GenMeshCubicmap(Image cubicmap, Vector3 cubeSize) mesh.vertices = (float *)malloc(mesh.vertexCount*3*sizeof(float)); mesh.normals = (float *)malloc(mesh.vertexCount*3*sizeof(float)); mesh.texcoords = (float *)malloc(mesh.vertexCount*2*sizeof(float)); - mesh.colors = (unsigned char *)malloc(mesh.vertexCount*4*sizeof(unsigned char)); // Not used... - - // Fill color data - // NOTE: Not used any more... just one plain color defined at DrawModel() - for (int i = 0; i < (4*mesh.vertexCount); i++) mesh.colors[i] = 255; + mesh.colors = NULL; int fCounter = 0; @@ -1810,7 +1885,7 @@ static Mesh LoadOBJ(const char *fileName) mesh.vertices = (float *)malloc(mesh.vertexCount*3*sizeof(float)); mesh.texcoords = (float *)malloc(mesh.vertexCount*2*sizeof(float)); mesh.normals = (float *)malloc(mesh.vertexCount*3*sizeof(float)); - mesh.colors = (unsigned char *)malloc(mesh.vertexCount*4*sizeof(unsigned char)); + mesh.colors = NULL; int vCounter = 0; // Used to count vertices float by float int tcCounter = 0; // Used to count texcoords float by float @@ -1909,10 +1984,6 @@ static Mesh LoadOBJ(const char *fileName) // Security check, just in case no normals or no texcoords defined in OBJ if (numTexCoords == 0) for (int i = 0; i < (2*mesh.vertexCount); i++) mesh.texcoords[i] = 0.0f; - - // NOTE: We set all vertex colors to white - // NOTE: Not used any more... just one plain color defined at DrawModel() - for (int i = 0; i < (4*mesh.vertexCount); i++) mesh.colors[i] = 255; // Now we can free temp mid* arrays free(midVertices); @@ -1945,9 +2016,6 @@ static Material LoadMTL(const char *fileName) return material; } - // First reading pass: Get numVertex, numNormals, numTexCoords, numTriangles - // NOTE: vertex, texcoords and normals could be optimized (to be used indexed on faces definition) - // NOTE: faces MUST be defined as TRIANGLES (3 vertex per face) while(!feof(mtlFile)) { fscanf(mtlFile, "%c", &dataType); diff --git a/src/raylib.h b/src/raylib.h index c88a60f4..60384444 100644 --- a/src/raylib.h +++ b/src/raylib.h @@ -386,7 +386,7 @@ typedef struct Mesh { typedef struct Shader { unsigned int id; // Shader program id - // Variable attributes locations + // Vertex attributes locations (default locations) int vertexLoc; // Vertex attribute location point (default-location = 0) int texcoordLoc; // Texcoord attribute location point (default-location = 1) int normalLoc; // Normal attribute location point (default-location = 2) @@ -803,14 +803,14 @@ void DrawGizmo(Vector3 position); //------------------------------------------------------------------------------------ Model LoadModel(const char *fileName); // Load a 3d model (.OBJ) Model LoadModelEx(Mesh data); // Load a 3d model (from mesh data) -//Model LoadModelFromRES(const char *rresName, int resId); // TODO: Load a 3d model from rRES file (raylib Resource) +Model LoadModelFromRES(const char *rresName, int resId); // Load a 3d model from rRES file (raylib Resource) Model LoadHeightmap(Image heightmap, Vector3 size); // Load a heightmap image as a 3d model Model LoadCubicmap(Image cubicmap); // Load a map image as a 3d model (cubes based) void UnloadModel(Model model); // Unload 3d model from memory void SetModelTexture(Model *model, Texture2D texture); // Link a texture to a model Material LoadMaterial(const char *fileName); // Load material data (from file) -Material LoadDefaultMaterial(void); // Load default material (uses default models shader) +Material LoadDefaultMaterial(void); // Load default material (uses default models shader) void DrawModel(Model model, Vector3 position, float scale, Color tint); // Draw a model (with texture if set) void DrawModelEx(Model model, Vector3 position, Vector3 rotationAxis, float rotationAngle, Vector3 scale, Color tint); // Draw a model with extended parameters diff --git a/src/rlgl.c b/src/rlgl.c index 462ccdec..6ffcb8a5 100644 --- a/src/rlgl.c +++ b/src/rlgl.c @@ -811,9 +811,11 @@ void rlDeleteVertexArrays(unsigned int id) void rlDeleteBuffers(unsigned int id) { #if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) - glDeleteBuffers(1, &id); - - if (!vaoSupported) TraceLog(INFO, "[VBO ID %i] Unloaded model vertex data from VRAM (GPU)", id); + if (id != 0) + { + glDeleteBuffers(1, &id); + if (!vaoSupported) TraceLog(INFO, "[VBO ID %i] Unloaded model vertex data from VRAM (GPU)", id); + } #endif } @@ -1638,6 +1640,7 @@ void rlglGenerateMipmaps(Texture2D texture) } // Upload vertex data into a VAO (if supported) and VBO +// TODO: Consider attributes: color, texcoords2, tangents (if available) void rlglLoadMesh(Mesh *mesh) { mesh->vaoId = 0; // Vertex Array Object @@ -1648,11 +1651,10 @@ void rlglLoadMesh(Mesh *mesh) mesh->vboId[4] = 0; // Vertex tangent VBO mesh->vboId[5] = 0; // Vertex texcoord2 VBO - // TODO: Consider attributes: color, texcoords2, tangents (if available) - + #if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) GLuint vaoId = 0; // Vertex Array Objects (VAO) - GLuint vboId[3]; // Vertex Buffer Objects (VBOs) + GLuint vboId[6]; // Vertex Buffer Objects (VBOs) if (vaoSupported) { @@ -1661,36 +1663,92 @@ void rlglLoadMesh(Mesh *mesh) glBindVertexArray(vaoId); } - // Create buffers for our vertex data (positions, texcoords, normals) - glGenBuffers(3, vboId); - // NOTE: Attributes must be uploaded considering default locations points // Enable vertex attributes: position (shader-location = 0) + glGenBuffers(1, &vboId[0]); glBindBuffer(GL_ARRAY_BUFFER, vboId[0]); glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*mesh->vertexCount, mesh->vertices, GL_STATIC_DRAW); glVertexAttribPointer(0, 3, GL_FLOAT, 0, 0, 0); glEnableVertexAttribArray(0); // Enable vertex attributes: texcoords (shader-location = 1) + glGenBuffers(1, &vboId[1]); glBindBuffer(GL_ARRAY_BUFFER, vboId[1]); glBufferData(GL_ARRAY_BUFFER, sizeof(float)*2*mesh->vertexCount, mesh->texcoords, GL_STATIC_DRAW); glVertexAttribPointer(1, 2, GL_FLOAT, 0, 0, 0); glEnableVertexAttribArray(1); // Enable vertex attributes: normals (shader-location = 2) - glBindBuffer(GL_ARRAY_BUFFER, vboId[2]); - glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*mesh->vertexCount, mesh->normals, GL_STATIC_DRAW); - glVertexAttribPointer(2, 3, GL_FLOAT, 0, 0, 0); - glEnableVertexAttribArray(2); + if (mesh->normals != NULL) + { + glGenBuffers(1, &vboId[2]); + glBindBuffer(GL_ARRAY_BUFFER, vboId[2]); + glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*mesh->vertexCount, mesh->normals, GL_STATIC_DRAW); + glVertexAttribPointer(2, 3, GL_FLOAT, 0, 0, 0); + glEnableVertexAttribArray(2); + } + else + { + // Default color vertex attribute set to WHITE + glVertexAttrib3f(2, 1.0f, 1.0f, 1.0f); + glDisableVertexAttribArray(2); + } // Default color vertex attribute (shader-location = 3) - glVertexAttrib4f(3, 1.0f, 1.0f, 1.0f, 1.0f); // Color vertex attribute set to default: WHITE - glDisableVertexAttribArray(3); + if (mesh->colors != NULL) + { + glGenBuffers(1, &vboId[3]); + glBindBuffer(GL_ARRAY_BUFFER, vboId[3]); + glBufferData(GL_ARRAY_BUFFER, sizeof(unsigned char)*4*mesh->vertexCount, mesh->colors, GL_STATIC_DRAW); + glVertexAttribPointer(3, 4, GL_UNSIGNED_BYTE, GL_TRUE, 0, 0); + glEnableVertexAttribArray(3); + } + else + { + // Default color vertex attribute set to WHITE + glVertexAttrib4f(3, 1.0f, 1.0f, 1.0f, 1.0f); + glDisableVertexAttribArray(3); + } + + // Default tangent vertex attribute (shader-location = 4) + if (mesh->tangents != NULL) + { + glGenBuffers(1, &vboId[4]); + glBindBuffer(GL_ARRAY_BUFFER, vboId[4]); + glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*mesh->vertexCount, mesh->tangents, GL_STATIC_DRAW); + glVertexAttribPointer(4, 3, GL_FLOAT, 0, 0, 0); + glEnableVertexAttribArray(4); + } + else + { + // Default tangents vertex attribute + glVertexAttrib3f(4, 0.0f, 0.0f, 0.0f); + glDisableVertexAttribArray(4); + } + + // Default texcoord2 vertex attribute (shader-location = 5) + if (mesh->texcoords2 != NULL) + { + glGenBuffers(1, &vboId[5]); + glBindBuffer(GL_ARRAY_BUFFER, vboId[5]); + glBufferData(GL_ARRAY_BUFFER, sizeof(float)*2*mesh->vertexCount, mesh->texcoords2, GL_STATIC_DRAW); + glVertexAttribPointer(5, 2, GL_FLOAT, 0, 0, 0); + glEnableVertexAttribArray(5); + } + else + { + // Default tangents vertex attribute + glVertexAttrib2f(5, 0.0f, 0.0f); + glDisableVertexAttribArray(5); + } mesh->vboId[0] = vboId[0]; // Vertex position VBO mesh->vboId[1] = vboId[1]; // Texcoords VBO mesh->vboId[2] = vboId[2]; // Normals VBO + mesh->vboId[3] = vboId[3]; // Colors VBO + mesh->vboId[4] = vboId[4]; // Tangents VBO + mesh->vboId[5] = vboId[5]; // Texcoords2 VBO if (vaoSupported) { @@ -1703,7 +1761,7 @@ void rlglLoadMesh(Mesh *mesh) } else { - TraceLog(INFO, "[VBO ID %i][VBO ID %i][VBO ID %i] Mesh uploaded successfully to VRAM (GPU)", mesh->vboId[0], mesh->vboId[1], mesh->vboId[2]); + TraceLog(INFO, "[VBOs] Mesh uploaded successfully to VRAM (GPU)"); } #endif }