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bgfx/examples/13-stencil/stencil.cpp
Leandro Freire 33ac8934ff Fixed tabs/spaces
2019-08-17 14:56:23 -07:00

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/*
* Copyright 2013-2014 Dario Manesku. All rights reserved.
* License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
*/
#include <string>
#include <vector>
#include "common.h"
#include "bgfx_utils.h"
#include <bx/file.h>
#include "camera.h"
#include "imgui/imgui.h"
namespace bgfx
{
int32_t read(bx::ReaderI* _reader, bgfx::VertexLayout& _layout, bx::Error* _err = NULL);
}
namespace
{
#define RENDER_VIEWID_RANGE1_PASS_0 1
#define RENDER_VIEWID_RANGE1_PASS_1 2
#define RENDER_VIEWID_RANGE1_PASS_2 3
#define RENDER_VIEWID_RANGE1_PASS_3 4
#define RENDER_VIEWID_RANGE1_PASS_4 5
#define RENDER_VIEWID_RANGE1_PASS_5 6
#define RENDER_VIEWID_RANGE5_PASS_6 7
#define RENDER_VIEWID_RANGE1_PASS_7 13
#define MAX_NUM_LIGHTS 5
struct PosNormalTexcoordVertex
{
float m_x;
float m_y;
float m_z;
uint32_t m_normal;
float m_u;
float m_v;
static void init()
{
ms_layout
.begin()
.add(bgfx::Attrib::Position, 3, bgfx::AttribType::Float)
.add(bgfx::Attrib::Normal, 4, bgfx::AttribType::Uint8, true, true)
.add(bgfx::Attrib::TexCoord0, 2, bgfx::AttribType::Float)
.end();
}
static bgfx::VertexLayout ms_layout;
};
bgfx::VertexLayout PosNormalTexcoordVertex::ms_layout;
static const float s_texcoord = 5.0f;
static PosNormalTexcoordVertex s_hplaneVertices[] =
{
{ -1.0f, 0.0f, 1.0f, encodeNormalRgba8(0.0f, 1.0f, 0.0f), s_texcoord, s_texcoord },
{ 1.0f, 0.0f, 1.0f, encodeNormalRgba8(0.0f, 1.0f, 0.0f), s_texcoord, 0.0f },
{ -1.0f, 0.0f, -1.0f, encodeNormalRgba8(0.0f, 1.0f, 0.0f), 0.0f, s_texcoord },
{ 1.0f, 0.0f, -1.0f, encodeNormalRgba8(0.0f, 1.0f, 0.0f), 0.0f, 0.0f },
};
static PosNormalTexcoordVertex s_vplaneVertices[] =
{
{ -1.0f, 1.0f, 0.0f, encodeNormalRgba8(0.0f, 0.0f, -1.0f), 1.0f, 1.0f },
{ 1.0f, 1.0f, 0.0f, encodeNormalRgba8(0.0f, 0.0f, -1.0f), 1.0f, 0.0f },
{ -1.0f, -1.0f, 0.0f, encodeNormalRgba8(0.0f, 0.0f, -1.0f), 0.0f, 1.0f },
{ 1.0f, -1.0f, 0.0f, encodeNormalRgba8(0.0f, 0.0f, -1.0f), 0.0f, 0.0f },
};
static const PosNormalTexcoordVertex s_cubeVertices[] =
{
{ -1.0f, 1.0f, 1.0f, encodeNormalRgba8( 0.0f, 1.0f, 0.0f), 1.0f, 1.0f },
{ 1.0f, 1.0f, 1.0f, encodeNormalRgba8( 0.0f, 1.0f, 0.0f), 0.0f, 1.0f },
{ -1.0f, 1.0f, -1.0f, encodeNormalRgba8( 0.0f, 1.0f, 0.0f), 1.0f, 0.0f },
{ 1.0f, 1.0f, -1.0f, encodeNormalRgba8( 0.0f, 1.0f, 0.0f), 0.0f, 0.0f },
{ -1.0f, -1.0f, 1.0f, encodeNormalRgba8( 0.0f, -1.0f, 0.0f), 1.0f, 1.0f },
{ 1.0f, -1.0f, 1.0f, encodeNormalRgba8( 0.0f, -1.0f, 0.0f), 0.0f, 1.0f },
{ -1.0f, -1.0f, -1.0f, encodeNormalRgba8( 0.0f, -1.0f, 0.0f), 1.0f, 0.0f },
{ 1.0f, -1.0f, -1.0f, encodeNormalRgba8( 0.0f, -1.0f, 0.0f), 0.0f, 0.0f },
{ 1.0f, -1.0f, 1.0f, encodeNormalRgba8( 0.0f, 0.0f, 1.0f), 0.0f, 0.0f },
{ 1.0f, 1.0f, 1.0f, encodeNormalRgba8( 0.0f, 0.0f, 1.0f), 0.0f, 1.0f },
{ -1.0f, -1.0f, 1.0f, encodeNormalRgba8( 0.0f, 0.0f, 1.0f), 1.0f, 0.0f },
{ -1.0f, 1.0f, 1.0f, encodeNormalRgba8( 0.0f, 0.0f, 1.0f), 1.0f, 1.0f },
{ 1.0f, -1.0f, -1.0f, encodeNormalRgba8( 0.0f, 0.0f, -1.0f), 0.0f, 0.0f },
{ 1.0f, 1.0f, -1.0f, encodeNormalRgba8( 0.0f, 0.0f, -1.0f), 0.0f, 1.0f },
{ -1.0f, -1.0f, -1.0f, encodeNormalRgba8( 0.0f, 0.0f, -1.0f), 1.0f, 0.0f },
{ -1.0f, 1.0f, -1.0f, encodeNormalRgba8( 0.0f, 0.0f, -1.0f), 1.0f, 1.0f },
{ 1.0f, 1.0f, -1.0f, encodeNormalRgba8( 1.0f, 0.0f, 0.0f), 1.0f, 1.0f },
{ 1.0f, 1.0f, 1.0f, encodeNormalRgba8( 1.0f, 0.0f, 0.0f), 0.0f, 1.0f },
{ 1.0f, -1.0f, -1.0f, encodeNormalRgba8( 1.0f, 0.0f, 0.0f), 1.0f, 0.0f },
{ 1.0f, -1.0f, 1.0f, encodeNormalRgba8( 1.0f, 0.0f, 0.0f), 0.0f, 0.0f },
{ -1.0f, 1.0f, -1.0f, encodeNormalRgba8(-1.0f, 0.0f, 0.0f), 1.0f, 1.0f },
{ -1.0f, 1.0f, 1.0f, encodeNormalRgba8(-1.0f, 0.0f, 0.0f), 0.0f, 1.0f },
{ -1.0f, -1.0f, -1.0f, encodeNormalRgba8(-1.0f, 0.0f, 0.0f), 1.0f, 0.0f },
{ -1.0f, -1.0f, 1.0f, encodeNormalRgba8(-1.0f, 0.0f, 0.0f), 0.0f, 0.0f },
};
static const uint16_t s_cubeIndices[] =
{
0, 1, 2,
1, 3, 2,
4, 6, 5,
5, 6, 7,
8, 9, 10,
9, 11, 10,
12, 14, 13,
13, 14, 15,
16, 17, 18,
17, 19, 18,
20, 22, 21,
21, 22, 23,
};
static const uint16_t s_planeIndices[] =
{
0, 1, 2,
1, 3, 2,
};
static uint32_t s_viewMask = 0;
static uint32_t s_clearMask = 0;
static bgfx::UniformHandle s_texColor;
void setViewClearMask(uint32_t _viewMask, uint8_t _flags, uint32_t _rgba, float _depth, uint8_t _stencil)
{
for (uint32_t view = 0, viewMask = _viewMask; 0 != viewMask; viewMask >>= 1, view += 1 )
{
const uint32_t ntz = bx::uint32_cnttz(viewMask);
viewMask >>= ntz;
view += ntz;
bgfx::setViewClear( (uint8_t)view, _flags, _rgba, _depth, _stencil);
}
}
void setViewTransformMask(uint32_t _viewMask, const void* _view, const void* _proj)
{
for (uint32_t view = 0, viewMask = _viewMask; 0 != viewMask; viewMask >>= 1, view += 1 )
{
const uint32_t ntz = bx::uint32_cnttz(viewMask);
viewMask >>= ntz;
view += ntz;
bgfx::setViewTransform( (uint8_t)view, _view, _proj);
}
}
void setViewRectMask(uint32_t _viewMask, uint16_t _x, uint16_t _y, uint16_t _width, uint16_t _height)
{
for (uint32_t view = 0, viewMask = _viewMask; 0 != viewMask; viewMask >>= 1, view += 1 )
{
const uint32_t ntz = bx::uint32_cnttz(viewMask);
viewMask >>= ntz;
view += ntz;
bgfx::setViewRect( (uint8_t)view, _x, _y, _width, _height);
}
}
void mtxReflected(float* _result, const bx::Vec3& _pos, const bx::Vec3& _normal)
{
const float nx = _normal.x;
const float ny = _normal.y;
const float nz = _normal.z;
_result[ 0] = 1.0f - 2.0f * nx * nx;
_result[ 1] = - 2.0f * nx * ny;
_result[ 2] = - 2.0f * nx * nz;
_result[ 3] = 0.0f;
_result[ 4] = - 2.0f * nx * ny;
_result[ 5] = 1.0f - 2.0f * ny * ny;
_result[ 6] = - 2.0f * ny * nz;
_result[ 7] = 0.0f;
_result[ 8] = - 2.0f * nx * nz;
_result[ 9] = - 2.0f * ny * nz;
_result[10] = 1.0f - 2.0f * nz * nz;
_result[11] = 0.0f;
const float dot = bx::dot(_pos, _normal);
_result[12] = 2.0f * dot * nx;
_result[13] = 2.0f * dot * ny;
_result[14] = 2.0f * dot * nz;
_result[15] = 1.0f;
}
void mtxShadow(float* _result, const float* _ground, const float* _light)
{
const float dot =
_ground[0] * _light[0]
+ _ground[1] * _light[1]
+ _ground[2] * _light[2]
+ _ground[3] * _light[3]
;
_result[ 0] = dot - _light[0] * _ground[0];
_result[ 1] = 0.0f - _light[1] * _ground[0];
_result[ 2] = 0.0f - _light[2] * _ground[0];
_result[ 3] = 0.0f - _light[3] * _ground[0];
_result[ 4] = 0.0f - _light[0] * _ground[1];
_result[ 5] = dot - _light[1] * _ground[1];
_result[ 6] = 0.0f - _light[2] * _ground[1];
_result[ 7] = 0.0f - _light[3] * _ground[1];
_result[ 8] = 0.0f - _light[0] * _ground[2];
_result[ 9] = 0.0f - _light[1] * _ground[2];
_result[10] = dot - _light[2] * _ground[2];
_result[11] = 0.0f - _light[3] * _ground[2];
_result[12] = 0.0f - _light[0] * _ground[3];
_result[13] = 0.0f - _light[1] * _ground[3];
_result[14] = 0.0f - _light[2] * _ground[3];
_result[15] = dot - _light[3] * _ground[3];
}
void mtxBillboard(float* _result, const float* _view, const float* _pos, const float* _scale)
{
_result[ 0] = _view[0] * _scale[0];
_result[ 1] = _view[4] * _scale[0];
_result[ 2] = _view[8] * _scale[0];
_result[ 3] = 0.0f;
_result[ 4] = _view[1] * _scale[1];
_result[ 5] = _view[5] * _scale[1];
_result[ 6] = _view[9] * _scale[1];
_result[ 7] = 0.0f;
_result[ 8] = _view[2] * _scale[2];
_result[ 9] = _view[6] * _scale[2];
_result[10] = _view[10] * _scale[2];
_result[11] = 0.0f;
_result[12] = _pos[0];
_result[13] = _pos[1];
_result[14] = _pos[2];
_result[15] = 1.0f;
}
struct Uniforms
{
void init()
{
m_params.m_ambientPass = 1.0f;
m_params.m_lightingPass = 1.0f;
m_params.m_lightCount = 4.0f;
m_params.m_lightIndex = 4.0f;
m_ambient[0] = 0.02f;
m_ambient[1] = 0.02f;
m_ambient[2] = 0.02f;
m_ambient[3] = 0.0f; //unused
m_diffuse[0] = 0.2f;
m_diffuse[1] = 0.2f;
m_diffuse[2] = 0.2f;
m_diffuse[3] = 0.0f; //unused
m_specular_shininess[0] = 1.0f;
m_specular_shininess[1] = 1.0f;
m_specular_shininess[2] = 1.0f;
m_specular_shininess[3] = 10.0f; //shininess
m_color[0] = 1.0f;
m_color[1] = 1.0f;
m_color[2] = 1.0f;
m_color[3] = 1.0f;
m_time = 0.0f;
for (uint8_t ii = 0; ii < MAX_NUM_LIGHTS; ++ii)
{
m_lightPosRadius[ii][0] = 0.0f;
m_lightPosRadius[ii][1] = 0.0f;
m_lightPosRadius[ii][2] = 0.0f;
m_lightPosRadius[ii][3] = 1.0f;
m_lightRgbInnerR[ii][0] = 1.0f;
m_lightRgbInnerR[ii][1] = 1.0f;
m_lightRgbInnerR[ii][2] = 1.0f;
m_lightRgbInnerR[ii][3] = 1.0f;
}
u_params = bgfx::createUniform("u_params", bgfx::UniformType::Vec4);
u_ambient = bgfx::createUniform("u_ambient", bgfx::UniformType::Vec4);
u_diffuse = bgfx::createUniform("u_diffuse", bgfx::UniformType::Vec4);
u_specular_shininess = bgfx::createUniform("u_specular_shininess", bgfx::UniformType::Vec4);
u_color = bgfx::createUniform("u_color", bgfx::UniformType::Vec4);
u_lightPosRadius = bgfx::createUniform("u_lightPosRadius", bgfx::UniformType::Vec4, MAX_NUM_LIGHTS);
u_lightRgbInnerR = bgfx::createUniform("u_lightRgbInnerR", bgfx::UniformType::Vec4, MAX_NUM_LIGHTS);
}
//call this once at initialization
void submitConstUniforms()
{
bgfx::setUniform(u_ambient, &m_ambient);
bgfx::setUniform(u_diffuse, &m_diffuse);
bgfx::setUniform(u_specular_shininess, &m_specular_shininess);
}
//call this before each draw call
void submitPerDrawUniforms()
{
bgfx::setUniform(u_params, &m_params);
bgfx::setUniform(u_color, &m_color);
bgfx::setUniform(u_lightPosRadius, &m_lightPosRadius, MAX_NUM_LIGHTS);
bgfx::setUniform(u_lightRgbInnerR, &m_lightRgbInnerR, MAX_NUM_LIGHTS);
}
void destroy()
{
bgfx::destroy(u_params);
bgfx::destroy(u_ambient);
bgfx::destroy(u_diffuse);
bgfx::destroy(u_specular_shininess);
bgfx::destroy(u_color);
bgfx::destroy(u_lightPosRadius);
bgfx::destroy(u_lightRgbInnerR);
}
struct Params
{
float m_ambientPass;
float m_lightingPass;
float m_lightCount;
float m_lightIndex;
};
struct SvParams
{
float m_useStencilTex;
float m_dfail;
float m_unused0;
float m_unused1;
};
Params m_params;
SvParams m_svparams;
float m_ambient[4];
float m_diffuse[4];
float m_specular_shininess[4];
float m_color[4];
float m_time;
float m_lightPosRadius[MAX_NUM_LIGHTS][4];
float m_lightRgbInnerR[MAX_NUM_LIGHTS][4];
/**
* u_params.x - u_ambientPass
* u_params.y - u_lightingPass
* u_params.z - u_lightCount
* u_params.w - u_lightIndex
*/
bgfx::UniformHandle u_params;
bgfx::UniformHandle u_ambient;
bgfx::UniformHandle u_diffuse;
bgfx::UniformHandle u_specular_shininess;
bgfx::UniformHandle u_color;
bgfx::UniformHandle u_lightPosRadius;
bgfx::UniformHandle u_lightRgbInnerR;
};
static Uniforms s_uniforms;
//-------------------------------------------------
// Render state
//-------------------------------------------------
struct RenderState
{
enum Enum
{
StencilReflection_CraftStencil = 0,
StencilReflection_DrawReflected,
StencilReflection_BlendPlane,
StencilReflection_DrawScene,
ProjectionShadows_DrawAmbient,
ProjectionShadows_CraftStencil,
ProjectionShadows_DrawDiffuse,
Custom_BlendLightTexture,
Custom_DrawPlaneBottom,
Count
};
uint64_t m_state;
uint32_t m_blendFactorRgba;
uint32_t m_fstencil;
uint32_t m_bstencil;
};
static RenderState s_renderStates[RenderState::Count] =
{
{ // StencilReflection_CraftStencil
BGFX_STATE_WRITE_RGB
| BGFX_STATE_WRITE_Z
| BGFX_STATE_DEPTH_TEST_LESS
| BGFX_STATE_MSAA
, UINT32_MAX
, BGFX_STENCIL_TEST_ALWAYS // pass always
| BGFX_STENCIL_FUNC_REF(1) // value = 1
| BGFX_STENCIL_FUNC_RMASK(0xff)
| BGFX_STENCIL_OP_FAIL_S_REPLACE
| BGFX_STENCIL_OP_FAIL_Z_REPLACE
| BGFX_STENCIL_OP_PASS_Z_REPLACE // store the value
, BGFX_STENCIL_NONE
},
{ // StencilReflection_DrawReflected
BGFX_STATE_WRITE_RGB
| BGFX_STATE_WRITE_A
| BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_SRC_ALPHA, BGFX_STATE_BLEND_INV_SRC_ALPHA)
| BGFX_STATE_WRITE_Z
| BGFX_STATE_DEPTH_TEST_LESS
| BGFX_STATE_CULL_CW //reflection matrix has inverted normals. using CCW instead of CW.
| BGFX_STATE_MSAA
, UINT32_MAX
, BGFX_STENCIL_TEST_EQUAL
| BGFX_STENCIL_FUNC_REF(1)
| BGFX_STENCIL_FUNC_RMASK(1)
| BGFX_STENCIL_OP_FAIL_S_KEEP
| BGFX_STENCIL_OP_FAIL_Z_KEEP
| BGFX_STENCIL_OP_PASS_Z_KEEP
, BGFX_STENCIL_NONE
},
{ // StencilReflection_BlendPlane
BGFX_STATE_WRITE_RGB
| BGFX_STATE_WRITE_Z
| BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_ONE, BGFX_STATE_BLEND_SRC_COLOR)
| BGFX_STATE_DEPTH_TEST_LESS
| BGFX_STATE_CULL_CCW
| BGFX_STATE_MSAA
, UINT32_MAX
, BGFX_STENCIL_NONE
, BGFX_STENCIL_NONE
},
{ // StencilReflection_DrawScene
BGFX_STATE_WRITE_RGB
| BGFX_STATE_WRITE_Z
| BGFX_STATE_DEPTH_TEST_LESS
| BGFX_STATE_CULL_CCW
| BGFX_STATE_MSAA
, UINT32_MAX
, BGFX_STENCIL_NONE
, BGFX_STENCIL_NONE
},
{ // ProjectionShadows_DrawAmbient
BGFX_STATE_WRITE_RGB
| BGFX_STATE_WRITE_Z // write depth !
| BGFX_STATE_DEPTH_TEST_LESS
| BGFX_STATE_CULL_CCW
| BGFX_STATE_MSAA
, UINT32_MAX
, BGFX_STENCIL_NONE
, BGFX_STENCIL_NONE
},
{ // ProjectionShadows_CraftStencil
BGFX_STATE_DEPTH_TEST_LESS
| BGFX_STATE_MSAA
, UINT32_MAX
, BGFX_STENCIL_TEST_ALWAYS // pass always
| BGFX_STENCIL_FUNC_REF(1) // value = 1
| BGFX_STENCIL_FUNC_RMASK(0xff)
| BGFX_STENCIL_OP_FAIL_S_KEEP
| BGFX_STENCIL_OP_FAIL_Z_KEEP
| BGFX_STENCIL_OP_PASS_Z_REPLACE // store the value
, BGFX_STENCIL_NONE
},
{ // ProjectionShadows_DrawDiffuse
BGFX_STATE_WRITE_RGB
| BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_ONE, BGFX_STATE_BLEND_ONE)
| BGFX_STATE_DEPTH_TEST_EQUAL
| BGFX_STATE_CULL_CCW
| BGFX_STATE_MSAA
, UINT32_MAX
, BGFX_STENCIL_TEST_NOTEQUAL
| BGFX_STENCIL_FUNC_REF(1)
| BGFX_STENCIL_FUNC_RMASK(1)
| BGFX_STENCIL_OP_FAIL_S_KEEP
| BGFX_STENCIL_OP_FAIL_Z_KEEP
| BGFX_STENCIL_OP_PASS_Z_KEEP
, BGFX_STENCIL_NONE
},
{ // Custom_BlendLightTexture
BGFX_STATE_WRITE_RGB
| BGFX_STATE_WRITE_A
| BGFX_STATE_WRITE_Z
| BGFX_STATE_DEPTH_TEST_LESS
| BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_SRC_COLOR, BGFX_STATE_BLEND_INV_SRC_COLOR)
| BGFX_STATE_CULL_CCW
| BGFX_STATE_MSAA
, UINT32_MAX
, BGFX_STENCIL_NONE
, BGFX_STENCIL_NONE
},
{ // Custom_DrawPlaneBottom
BGFX_STATE_WRITE_RGB
| BGFX_STATE_CULL_CW
| BGFX_STATE_MSAA
, UINT32_MAX
, BGFX_STENCIL_NONE
, BGFX_STENCIL_NONE
},
};
struct ViewState
{
ViewState(uint32_t _width = 0, uint32_t _height = 0)
: m_width(_width)
, m_height(_height)
{
}
uint32_t m_width;
uint32_t m_height;
float m_view[16];
float m_proj[16];
};
struct ClearValues
{
ClearValues(uint32_t _clearRgba = 0x30303000
, float _clearDepth = 1.0f
, uint8_t _clearStencil = 0
)
: m_clearRgba(_clearRgba)
, m_clearDepth(_clearDepth)
, m_clearStencil(_clearStencil)
{ }
uint32_t m_clearRgba;
float m_clearDepth;
uint8_t m_clearStencil;
};
void clearView(bgfx::ViewId _id, uint8_t _flags, const ClearValues& _clearValues)
{
bgfx::setViewClear(_id
, _flags
, _clearValues.m_clearRgba
, _clearValues.m_clearDepth
, _clearValues.m_clearStencil
);
// Keep track of cleared views
s_clearMask |= 1 << _id;
}
void clearViewMask(uint32_t _viewMask, uint8_t _flags, const ClearValues& _clearValues)
{
setViewClearMask(_viewMask
, _flags
, _clearValues.m_clearRgba
, _clearValues.m_clearDepth
, _clearValues.m_clearStencil
);
// Keep track of cleared views
s_clearMask |= _viewMask;
}
struct Aabb
{
float m_min[3];
float m_max[3];
};
struct Obb
{
float m_mtx[16];
};
struct Sphere
{
float m_center[3];
float m_radius;
};
struct Primitive
{
uint32_t m_startIndex;
uint32_t m_numIndices;
uint32_t m_startVertex;
uint32_t m_numVertices;
Sphere m_sphere;
Aabb m_aabb;
Obb m_obb;
};
typedef std::vector<Primitive> PrimitiveArray;
struct Group
{
Group()
{
reset();
}
void reset()
{
m_vbh.idx = bgfx::kInvalidHandle;
m_ibh.idx = bgfx::kInvalidHandle;
m_prims.clear();
}
bgfx::VertexBufferHandle m_vbh;
bgfx::IndexBufferHandle m_ibh;
Sphere m_sphere;
Aabb m_aabb;
Obb m_obb;
PrimitiveArray m_prims;
};
struct Mesh
{
void load(const void* _vertices, uint32_t _numVertices, const bgfx::VertexLayout _layout, const uint16_t* _indices, uint32_t _numIndices)
{
Group group;
const bgfx::Memory* mem;
uint32_t size;
size = _numVertices*_layout.getStride();
mem = bgfx::makeRef(_vertices, size);
group.m_vbh = bgfx::createVertexBuffer(mem, _layout);
size = _numIndices*2;
mem = bgfx::makeRef(_indices, size);
group.m_ibh = bgfx::createIndexBuffer(mem);
m_groups.push_back(group);
}
void load(const char* _filePath)
{
#define BGFX_CHUNK_MAGIC_VB BX_MAKEFOURCC('V', 'B', ' ', 0x1)
#define BGFX_CHUNK_MAGIC_IB BX_MAKEFOURCC('I', 'B', ' ', 0x0)
#define BGFX_CHUNK_MAGIC_PRI BX_MAKEFOURCC('P', 'R', 'I', 0x0)
bx::FileReaderI* reader = entry::getFileReader();
bx::open(reader, _filePath);
Group group;
uint32_t chunk;
while (4 == bx::read(reader, chunk) )
{
switch (chunk)
{
case BGFX_CHUNK_MAGIC_VB:
{
bx::read(reader, group.m_sphere);
bx::read(reader, group.m_aabb);
bx::read(reader, group.m_obb);
bgfx::read(reader, m_layout);
uint16_t stride = m_layout.getStride();
uint16_t numVertices;
bx::read(reader, numVertices);
const bgfx::Memory* mem = bgfx::alloc(numVertices*stride);
bx::read(reader, mem->data, mem->size);
group.m_vbh = bgfx::createVertexBuffer(mem, m_layout);
}
break;
case BGFX_CHUNK_MAGIC_IB:
{
uint32_t numIndices;
bx::read(reader, numIndices);
const bgfx::Memory* mem = bgfx::alloc(numIndices*2);
bx::read(reader, mem->data, mem->size);
group.m_ibh = bgfx::createIndexBuffer(mem);
}
break;
case BGFX_CHUNK_MAGIC_PRI:
{
uint16_t len;
bx::read(reader, len);
std::string material;
material.resize(len);
bx::read(reader, const_cast<char*>(material.c_str() ), len);
uint16_t num;
bx::read(reader, num);
for (uint32_t ii = 0; ii < num; ++ii)
{
bx::read(reader, len);
std::string name;
name.resize(len);
bx::read(reader, const_cast<char*>(name.c_str() ), len);
Primitive prim;
bx::read(reader, prim.m_startIndex);
bx::read(reader, prim.m_numIndices);
bx::read(reader, prim.m_startVertex);
bx::read(reader, prim.m_numVertices);
bx::read(reader, prim.m_sphere);
bx::read(reader, prim.m_aabb);
bx::read(reader, prim.m_obb);
group.m_prims.push_back(prim);
}
m_groups.push_back(group);
group.reset();
}
break;
default:
DBG("%08x at %d", chunk, bx::seek(reader) );
abort();
break;
}
}
bx::close(reader);
}
void unload()
{
for (GroupArray::const_iterator it = m_groups.begin(), itEnd = m_groups.end(); it != itEnd; ++it)
{
const Group& group = *it;
bgfx::destroy(group.m_vbh);
if (bgfx::isValid(group.m_ibh) )
{
bgfx::destroy(group.m_ibh);
}
}
m_groups.clear();
}
void submit(bgfx::ViewId _id, float* _mtx, bgfx::ProgramHandle _program, const RenderState& _renderState)
{
bgfx::TextureHandle texture = BGFX_INVALID_HANDLE;
submit(_id, _mtx, _program, _renderState, texture);
}
void submit(bgfx::ViewId _id, float* _mtx, bgfx::ProgramHandle _program, const RenderState& _renderState, bgfx::TextureHandle _texture)
{
for (GroupArray::const_iterator it = m_groups.begin(), itEnd = m_groups.end(); it != itEnd; ++it)
{
const Group& group = *it;
// Set uniforms
s_uniforms.submitPerDrawUniforms();
// Set model matrix for rendering.
bgfx::setTransform(_mtx);
bgfx::setIndexBuffer(group.m_ibh);
bgfx::setVertexBuffer(0, group.m_vbh);
// Set texture
bgfx::setTexture(0, s_texColor, _texture);
// Apply render state
bgfx::setStencil(_renderState.m_fstencil, _renderState.m_bstencil);
bgfx::setState(_renderState.m_state, _renderState.m_blendFactorRgba);
// Submit
bgfx::submit(_id, _program);
// Keep track of submited view ids
s_viewMask |= 1 << _id;
}
}
bgfx::VertexLayout m_layout;
typedef std::vector<Group> GroupArray;
GroupArray m_groups;
};
class ExampleStencil : public entry::AppI
{
public:
ExampleStencil(const char* _name, const char* _description, const char* _url)
: entry::AppI(_name, _description, _url)
{
}
virtual void init(int32_t _argc, const char* const* _argv, uint32_t _width, uint32_t _height) override
{
Args args(_argc, _argv);
m_viewState = ViewState(_width, _height);
m_clearValues = ClearValues(0x30303000, 1.0f, 0);
m_debug = BGFX_DEBUG_NONE;
m_reset = BGFX_RESET_VSYNC;
bgfx::Init init;
init.type = args.m_type;
init.vendorId = args.m_pciId;
init.resolution.width = m_viewState.m_width;
init.resolution.height = m_viewState.m_height;
init.resolution.reset = m_reset;
bgfx::init(init);
// Enable debug text.
bgfx::setDebug(m_debug);
// Imgui.
imguiCreate();
PosNormalTexcoordVertex::init();
s_uniforms.init();
s_texColor = bgfx::createUniform("s_texColor", bgfx::UniformType::Sampler);
m_programTextureLighting = loadProgram("vs_stencil_texture_lighting", "fs_stencil_texture_lighting");
m_programColorLighting = loadProgram("vs_stencil_color_lighting", "fs_stencil_color_lighting" );
m_programColorTexture = loadProgram("vs_stencil_color_texture", "fs_stencil_color_texture" );
m_programColorBlack = loadProgram("vs_stencil_color", "fs_stencil_color_black" );
m_programTexture = loadProgram("vs_stencil_texture", "fs_stencil_texture" );
m_bunnyMesh.load("meshes/bunny.bin");
m_columnMesh.load("meshes/column.bin");
m_cubeMesh.load(s_cubeVertices, BX_COUNTOF(s_cubeVertices), PosNormalTexcoordVertex::ms_layout, s_cubeIndices, BX_COUNTOF(s_cubeIndices) );
m_hplaneMesh.load(s_hplaneVertices, BX_COUNTOF(s_hplaneVertices), PosNormalTexcoordVertex::ms_layout, s_planeIndices, BX_COUNTOF(s_planeIndices) );
m_vplaneMesh.load(s_vplaneVertices, BX_COUNTOF(s_vplaneVertices), PosNormalTexcoordVertex::ms_layout, s_planeIndices, BX_COUNTOF(s_planeIndices) );
m_figureTex = loadTexture("textures/figure-rgba.dds");
m_flareTex = loadTexture("textures/flare.dds");
m_fieldstoneTex = loadTexture("textures/fieldstone-rgba.dds");
// Setup lights.
const float rgbInnerR[][4] =
{
{ 1.0f, 0.7f, 0.2f, 0.0f }, //yellow
{ 0.7f, 0.2f, 1.0f, 0.0f }, //purple
{ 0.2f, 1.0f, 0.7f, 0.0f }, //cyan
{ 1.0f, 0.4f, 0.2f, 0.0f }, //orange
{ 0.7f, 0.7f, 0.7f, 0.0f }, //white
};
for (uint8_t ii = 0, jj = 0; ii < MAX_NUM_LIGHTS; ++ii, ++jj)
{
const uint8_t index = jj%BX_COUNTOF(rgbInnerR);
m_lightRgbInnerR[ii][0] = rgbInnerR[index][0];
m_lightRgbInnerR[ii][1] = rgbInnerR[index][1];
m_lightRgbInnerR[ii][2] = rgbInnerR[index][2];
m_lightRgbInnerR[ii][3] = rgbInnerR[index][3];
}
bx::memCopy(s_uniforms.m_lightRgbInnerR, m_lightRgbInnerR, MAX_NUM_LIGHTS * 4*sizeof(float) );
// Set view and projection matrices.
const float aspect = float(m_viewState.m_width)/float(m_viewState.m_height);
const bgfx::Caps* caps = bgfx::getCaps();
bx::mtxProj(m_viewState.m_proj, 60.0f, aspect, 0.1f, 100.0f, caps->homogeneousDepth);
cameraCreate();
cameraSetPosition({ 0.0f, 18.0f, -40.0f });
cameraSetVerticalAngle(-0.35f);
cameraGetViewMtx(m_viewState.m_view);
m_timeOffset = bx::getHPCounter();
m_scene = StencilReflectionScene;
m_numLights = 4;
m_reflectionValue = 0.8f;
m_updateLights = true;
m_updateScene = true;
}
virtual int shutdown() override
{
// Cleanup.
m_bunnyMesh.unload();
m_columnMesh.unload();
m_cubeMesh.unload();
m_hplaneMesh.unload();
m_vplaneMesh.unload();
bgfx::destroy(m_figureTex);
bgfx::destroy(m_fieldstoneTex);
bgfx::destroy(m_flareTex);
bgfx::destroy(m_programTextureLighting);
bgfx::destroy(m_programColorLighting);
bgfx::destroy(m_programColorTexture);
bgfx::destroy(m_programColorBlack);
bgfx::destroy(m_programTexture);
bgfx::destroy(s_texColor);
s_uniforms.destroy();
cameraDestroy();
imguiDestroy();
// Shutdown bgfx.
bgfx::shutdown();
return 0;
}
virtual bool update() override
{
if (!entry::processEvents(m_viewState.m_width, m_viewState.m_height, m_debug, m_reset, &m_mouseState) )
{
imguiBeginFrame(m_mouseState.m_mx
, m_mouseState.m_my
, (m_mouseState.m_buttons[entry::MouseButton::Left ] ? IMGUI_MBUT_LEFT : 0)
| (m_mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
| (m_mouseState.m_buttons[entry::MouseButton::Middle] ? IMGUI_MBUT_MIDDLE : 0)
, m_mouseState.m_mz
, uint16_t(m_viewState.m_width)
, uint16_t(m_viewState.m_height)
);
showExampleDialog(this);
ImGui::SetNextWindowPos(
ImVec2(m_viewState.m_width - m_viewState.m_width / 5.0f - 10.0f, 10.0f)
, ImGuiCond_FirstUseEver
);
ImGui::SetNextWindowSize(
ImVec2(m_viewState.m_width / 5.0f, m_viewState.m_height / 2.0f)
, ImGuiCond_FirstUseEver
);
ImGui::Begin("Settings"
, NULL
, 0
);
{
bool check = StencilReflectionScene == m_scene;
if (ImGui::Checkbox("Stencil Reflection Scene", &check) )
{
m_scene = StencilReflectionScene;
m_numLights = 4;
}
}
{
bool check = ProjectionShadowsScene == m_scene;
if (ImGui::Checkbox("Projection Shadows Scene", &check) )
{
m_scene = ProjectionShadowsScene;
m_numLights = 1;
}
}
ImGui::SliderInt("Lights", &m_numLights, 1, MAX_NUM_LIGHTS);
if (m_scene == StencilReflectionScene)
{
ImGui::SliderFloat("Reflection value", &m_reflectionValue, 0.0f, 1.0f);
}
ImGui::Checkbox("Update lights", &m_updateLights);
ImGui::Checkbox("Update scene", &m_updateScene);
ImGui::End();
imguiEndFrame();
s_uniforms.submitConstUniforms();
// Update settings.
uint8_t numLights = (uint8_t)m_numLights;
s_uniforms.m_params.m_ambientPass = 1.0f;
s_uniforms.m_params.m_lightingPass = 1.0f;
s_uniforms.m_params.m_lightCount = float(m_numLights);
s_uniforms.m_params.m_lightIndex = 0.0f;
s_uniforms.m_color[3] = m_reflectionValue;
// Time.
int64_t now = bx::getHPCounter();
static int64_t last = now;
const int64_t frameTime = now - last;
last = now;
const double freq = double(bx::getHPFrequency() );
const float time = (float)( (now - m_timeOffset)/double(bx::getHPFrequency() ) );
const float deltaTime = float(frameTime/freq);
s_uniforms.m_time = time;
// Update camera.
cameraUpdate(deltaTime, m_mouseState);
cameraGetViewMtx(m_viewState.m_view);
static float lightTimeAccumulator = 0.0f;
if (m_updateLights)
{
lightTimeAccumulator += deltaTime;
}
static float sceneTimeAccumulator = 0.0f;
if (m_updateScene)
{
sceneTimeAccumulator += deltaTime;
}
float lightPosRadius[MAX_NUM_LIGHTS][4];
const float radius = (m_scene == StencilReflectionScene) ? 15.0f : 25.0f;
for (uint8_t ii = 0; ii < numLights; ++ii)
{
lightPosRadius[ii][0] = bx::sin( (lightTimeAccumulator*1.1f + ii*0.03f + ii*bx::kPiHalf*1.07f ) )*20.0f;
lightPosRadius[ii][1] = 8.0f + (1.0f - bx::cos( (lightTimeAccumulator*1.5f + ii*0.29f + bx::kPiHalf*1.49f ) ) )*4.0f;
lightPosRadius[ii][2] = bx::cos( (lightTimeAccumulator*1.3f + ii*0.13f + ii*bx::kPiHalf*1.79f ) )*20.0f;
lightPosRadius[ii][3] = radius;
}
bx::memCopy(s_uniforms.m_lightPosRadius, lightPosRadius, numLights * 4*sizeof(float) );
// Floor position.
float floorMtx[16];
bx::mtxSRT(floorMtx
, 20.0f //scaleX
, 20.0f //scaleY
, 20.0f //scaleZ
, 0.0f //rotX
, 0.0f //rotY
, 0.0f //rotZ
, 0.0f //translateX
, 0.0f //translateY
, 0.0f //translateZ
);
// Bunny position.
float bunnyMtx[16];
bx::mtxSRT(bunnyMtx
, 5.0f
, 5.0f
, 5.0f
, 0.0f
, 1.56f - sceneTimeAccumulator
, 0.0f
, 0.0f
, 2.0f
, 0.0f
);
// Columns position.
const float dist = 14.0f;
const float columnPositions[4][3] =
{
{ dist, 0.0f, dist },
{ -dist, 0.0f, dist },
{ dist, 0.0f, -dist },
{ -dist, 0.0f, -dist },
};
float columnMtx[4][16];
for (uint8_t ii = 0; ii < 4; ++ii)
{
bx::mtxSRT(columnMtx[ii]
, 1.0f
, 1.0f
, 1.0f
, 0.0f
, 0.0f
, 0.0f
, columnPositions[ii][0]
, columnPositions[ii][1]
, columnPositions[ii][2]
);
}
const uint8_t numCubes = 9;
float cubeMtx[numCubes][16];
for (uint16_t ii = 0; ii < numCubes; ++ii)
{
bx::mtxSRT(cubeMtx[ii]
, 1.0f
, 1.0f
, 1.0f
, 0.0f
, 0.0f
, 0.0f
, bx::sin(ii * 2.0f + 13.0f - sceneTimeAccumulator) * 13.0f
, 4.0f
, bx::cos(ii * 2.0f + 13.0f - sceneTimeAccumulator) * 13.0f
);
}
// Make sure at the beginning everything gets cleared.
clearView(0, BGFX_CLEAR_COLOR | BGFX_CLEAR_DEPTH | BGFX_CLEAR_STENCIL, m_clearValues);
bgfx::touch(0);
s_viewMask |= 1;
// Bunny and columns color.
s_uniforms.m_color[0] = 0.70f;
s_uniforms.m_color[1] = 0.65f;
s_uniforms.m_color[2] = 0.60f;
switch (m_scene)
{
case StencilReflectionScene:
{
// First pass - Draw plane.
// Setup params for this scene.
s_uniforms.m_params.m_ambientPass = 1.0f;
s_uniforms.m_params.m_lightingPass = 1.0f;
// Floor.
m_hplaneMesh.submit(RENDER_VIEWID_RANGE1_PASS_0
, floorMtx
, m_programColorBlack
, s_renderStates[RenderState::StencilReflection_CraftStencil]
);
// Second pass - Draw reflected objects.
// Clear depth from previous pass.
clearView(RENDER_VIEWID_RANGE1_PASS_1, BGFX_CLEAR_DEPTH, m_clearValues);
// Compute reflected matrix.
float reflectMtx[16];
mtxReflected(reflectMtx, { 0.0f, 0.01f, 0.0f }, { 0.0f, 1.0f, 0.0f });
// Reflect lights.
for (uint8_t ii = 0; ii < numLights; ++ii)
{
bx::Vec3 reflected = bx::mul(bx::load<bx::Vec3>(lightPosRadius[ii]), reflectMtx);
bx::store(&s_uniforms.m_lightPosRadius[ii], reflected);
s_uniforms.m_lightPosRadius[ii][3] = lightPosRadius[ii][3];
}
// Reflect and submit bunny.
float mtxReflectedBunny[16];
bx::mtxMul(mtxReflectedBunny, bunnyMtx, reflectMtx);
m_bunnyMesh.submit(RENDER_VIEWID_RANGE1_PASS_1
, mtxReflectedBunny
, m_programColorLighting
, s_renderStates[RenderState::StencilReflection_DrawReflected]
);
// Reflect and submit columns.
float mtxReflectedColumn[16];
for (uint8_t ii = 0; ii < 4; ++ii)
{
bx::mtxMul(mtxReflectedColumn, columnMtx[ii], reflectMtx);
m_columnMesh.submit(RENDER_VIEWID_RANGE1_PASS_1
, mtxReflectedColumn
, m_programColorLighting
, s_renderStates[RenderState::StencilReflection_DrawReflected]
);
}
// Set lights back.
bx::memCopy(s_uniforms.m_lightPosRadius, lightPosRadius, numLights * 4*sizeof(float) );
// Third pass - Blend plane.
// Floor.
m_hplaneMesh.submit(RENDER_VIEWID_RANGE1_PASS_2
, floorMtx
, m_programTextureLighting
, s_renderStates[RenderState::StencilReflection_BlendPlane]
, m_fieldstoneTex
);
// Fourth pass - Draw everything else but the plane.
// Bunny.
m_bunnyMesh.submit(RENDER_VIEWID_RANGE1_PASS_3
, bunnyMtx
, m_programColorLighting
, s_renderStates[RenderState::StencilReflection_DrawScene]
);
// Columns.
for (uint8_t ii = 0; ii < 4; ++ii)
{
m_columnMesh.submit(RENDER_VIEWID_RANGE1_PASS_3
, columnMtx[ii]
, m_programColorLighting
, s_renderStates[RenderState::StencilReflection_DrawScene]
);
}
}
break;
case ProjectionShadowsScene:
{
// First pass - Draw entire scene. (ambient only).
s_uniforms.m_params.m_ambientPass = 1.0f;
s_uniforms.m_params.m_lightingPass = 0.0f;
// Bunny.
m_bunnyMesh.submit(RENDER_VIEWID_RANGE1_PASS_0
, bunnyMtx
, m_programColorLighting
, s_renderStates[RenderState::ProjectionShadows_DrawAmbient]
);
// Floor.
m_hplaneMesh.submit(RENDER_VIEWID_RANGE1_PASS_0
, floorMtx
, m_programTextureLighting
, s_renderStates[RenderState::ProjectionShadows_DrawAmbient]
, m_fieldstoneTex
);
// Cubes.
for (uint8_t ii = 0; ii < numCubes; ++ii)
{
m_cubeMesh.submit(RENDER_VIEWID_RANGE1_PASS_0
, cubeMtx[ii]
, m_programTextureLighting
, s_renderStates[RenderState::ProjectionShadows_DrawAmbient]
, m_figureTex
);
}
// Ground plane.
float ground[4] = { 0.0f, 1.0f, 0.0f, -bx::dot(bx::Vec3{ 0.0f, 0.0f, 0.0f }, bx::Vec3{ 0.0f, 1.0f, 0.0f }) - 0.01f };
for (uint8_t ii = 0, viewId = RENDER_VIEWID_RANGE5_PASS_6; ii < numLights; ++ii, ++viewId)
{
// Clear stencil for this light source.
clearView(viewId, BGFX_CLEAR_STENCIL, m_clearValues);
// Draw shadow projection of scene objects.
// Get homogeneous light pos.
float* lightPos = lightPosRadius[ii];
float pos[4];
bx::memCopy(pos, lightPos, sizeof(float) * 3);
pos[3] = 1.0f;
// Calculate shadow mtx for current light.
float shadowMtx[16];
mtxShadow(shadowMtx, ground, pos);
// Submit bunny's shadow.
float mtxShadowedBunny[16];
bx::mtxMul(mtxShadowedBunny, bunnyMtx, shadowMtx);
m_bunnyMesh.submit(viewId
, mtxShadowedBunny
, m_programColorBlack
, s_renderStates[RenderState::ProjectionShadows_CraftStencil]
);
// Submit cube shadows.
float mtxShadowedCube[16];
for (uint8_t jj = 0; jj < numCubes; ++jj)
{
bx::mtxMul(mtxShadowedCube, cubeMtx[jj], shadowMtx);
m_cubeMesh.submit(viewId
, mtxShadowedCube
, m_programColorBlack
, s_renderStates[RenderState::ProjectionShadows_CraftStencil]
);
}
// Draw entire scene. (lighting pass only. blending is on)
s_uniforms.m_params.m_ambientPass = 0.0f;
s_uniforms.m_params.m_lightingPass = 1.0f;
s_uniforms.m_params.m_lightCount = 1.0f;
s_uniforms.m_params.m_lightIndex = float(ii);
// Bunny.
m_bunnyMesh.submit(viewId
, bunnyMtx
, m_programColorLighting
, s_renderStates[RenderState::ProjectionShadows_DrawDiffuse]
);
// Floor.
m_hplaneMesh.submit(viewId
, floorMtx
, m_programTextureLighting
, s_renderStates[RenderState::ProjectionShadows_DrawDiffuse]
, m_fieldstoneTex
);
// Cubes.
for (uint8_t jj = 0; jj < numCubes; ++jj)
{
m_cubeMesh.submit(viewId
, cubeMtx[jj]
, m_programTextureLighting
, s_renderStates[RenderState::ProjectionShadows_DrawDiffuse]
, m_figureTex
);
}
}
// Reset these to default..
s_uniforms.m_params.m_ambientPass = 1.0f;
s_uniforms.m_params.m_lightingPass = 1.0f;
}
break;
};
//lights
const float lightScale[3] = { 1.5f, 1.5f, 1.5f };
float lightMtx[16];
for (uint8_t ii = 0; ii < numLights; ++ii)
{
s_uniforms.m_color[0] = m_lightRgbInnerR[ii][0];
s_uniforms.m_color[1] = m_lightRgbInnerR[ii][1];
s_uniforms.m_color[2] = m_lightRgbInnerR[ii][2];
mtxBillboard(lightMtx, m_viewState.m_view, lightPosRadius[ii], lightScale);
m_vplaneMesh.submit(RENDER_VIEWID_RANGE1_PASS_7
, lightMtx
, m_programColorTexture
, s_renderStates[RenderState::Custom_BlendLightTexture]
, m_flareTex
);
}
// Draw floor bottom.
float floorBottomMtx[16];
bx::mtxSRT(floorBottomMtx
, 20.0f //scaleX
, 20.0f //scaleY
, 20.0f //scaleZ
, 0.0f //rotX
, 0.0f //rotY
, 0.0f //rotZ
, 0.0f //translateX
, -0.1f //translateY
, 0.0f //translateZ
);
m_hplaneMesh.submit(RENDER_VIEWID_RANGE1_PASS_7
, floorBottomMtx
, m_programTexture
, s_renderStates[RenderState::Custom_DrawPlaneBottom]
, m_figureTex
);
// Setup view rect and transform for all used views.
setViewRectMask(s_viewMask, 0, 0, uint16_t(m_viewState.m_width), uint16_t(m_viewState.m_height) );
setViewTransformMask(s_viewMask, m_viewState.m_view, m_viewState.m_proj);
s_viewMask = 0;
// Advance to next frame. Rendering thread will be kicked to
// process submitted rendering primitives.
bgfx::frame();
//reset clear values on used views
clearViewMask(s_clearMask, BGFX_CLEAR_NONE, m_clearValues);
s_clearMask = 0;
return true;
}
return false;
}
ViewState m_viewState;
entry::MouseState m_mouseState;
ClearValues m_clearValues;
uint32_t m_debug;
uint32_t m_reset;
bgfx::ProgramHandle m_programTextureLighting;
bgfx::ProgramHandle m_programColorLighting;
bgfx::ProgramHandle m_programColorTexture;
bgfx::ProgramHandle m_programColorBlack;
bgfx::ProgramHandle m_programTexture;
Mesh m_bunnyMesh;
Mesh m_columnMesh;
Mesh m_cubeMesh;
Mesh m_hplaneMesh;
Mesh m_vplaneMesh;
bgfx::TextureHandle m_figureTex;
bgfx::TextureHandle m_flareTex;
bgfx::TextureHandle m_fieldstoneTex;
float m_lightRgbInnerR[MAX_NUM_LIGHTS][4];
int64_t m_timeOffset;
enum Scene
{
StencilReflectionScene = 0,
ProjectionShadowsScene,
};
Scene m_scene;
int32_t m_numLights;
float m_reflectionValue;
bool m_updateLights;
bool m_updateScene;
};
} // namespace
ENTRY_IMPLEMENT_MAIN(
ExampleStencil
, "13-stencil"
, "Stencil reflections and shadows."
, "https://bkaradzic.github.io/bgfx/examples.html#stencil"
);
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