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Fixed reflection in 13-stencil.

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This commit is contained in:
Dario Manesku 2013-11-06 17:47:03 +01:00
parent 9ee7d760a7
commit 55f0be0761
3 changed files with 28 additions and 49 deletions
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4
examples/13-stencil/fs_stencil_color_lightning.sc
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@ -49,7 +49,7 @@ vec3 calcLight(int _idx, vec3 _view, vec3 _normal, vec3 _viewDir)
vec4 lc = lit(bln.x, bln.y, u_shininess);
float dist = max(length(toLight), u_lightPosRadius[_idx].w);
float attn = 150.0 * pow(dist, -2.0);
float attn = 250.0 * pow(dist, -2.0);
vec3 rgb = (lc.y * u_diffuse + lc.z * u_specular) * u_lightRgbInnerR[_idx].rgb * attn;
return rgb;
@ -84,5 +84,5 @@ void main()
vec3 diffuse = toGamma(lightColor * color);
gl_FragColor.xyz = clamp(ambient + diffuse, 0.0, 1.0);
gl_FragColor.w = 1.0;
gl_FragColor.w = u_color.w;
}

4
examples/13-stencil/fs_stencil_texture_lightning.sc
View file

@ -50,7 +50,7 @@ vec3 calcLight(int _idx, vec3 _view, vec3 _normal, vec3 _viewDir)
vec4 lc = lit(bln.x, bln.y, u_shininess);
float dist = max(length(toLight), u_lightPosRadius[_idx].w);
float attn = 150.0 * pow(dist, -2.0);
float attn = 250.0 * pow(dist, -2.0);
vec3 rgb = (lc.y * u_diffuse + lc.z * u_specular) * u_lightRgbInnerR[_idx].rgb * attn;
return rgb;
@ -85,5 +85,5 @@ void main()
vec3 diffuse = toGamma(lightColor * color);
gl_FragColor.xyz = clamp(ambient + diffuse, 0.0, 1.0);
gl_FragColor.w = 1.0;
gl_FragColor.w = u_color.w;
}

67
examples/13-stencil/stencil.cpp
View file

@ -335,25 +335,25 @@ struct Uniforms
m_params.m_lightCount = 4.0f;
m_params.m_lightIndex = 4.0f;
m_ambient[0] = 0.05f;
m_ambient[1] = 0.05f;
m_ambient[2] = 0.05f;
m_ambient[0] = 0.02f;
m_ambient[1] = 0.02f;
m_ambient[2] = 0.02f;
m_ambient[3] = 0.0f; //unused
m_diffuse[0] = 0.8f;
m_diffuse[1] = 0.8f;
m_diffuse[2] = 0.8f;
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] = 25.0f; //shininess
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] = 1.0;
m_color[3] = 1.0f;
m_time = 0.0f;
@ -469,7 +469,6 @@ struct RenderState
{
StencilReflection_CraftStencil = 0,
StencilReflection_DrawReflected,
StencilReflection_DarkenReflections,
StencilReflection_BlendPlane,
StencilReflection_DrawScene,
@ -492,7 +491,10 @@ struct RenderState
static RenderState s_renderStates[RenderState::Count] =
{
{ // StencilReflection_CraftStencil
BGFX_STATE_MSAA
BGFX_STATE_RGB_WRITE
| BGFX_STATE_DEPTH_WRITE
| BGFX_STATE_DEPTH_TEST_LESS
| BGFX_STATE_MSAA
, UINT32_MAX
, BGFX_STENCIL_TEST_ALWAYS // pass always
| BGFX_STENCIL_FUNC_REF(1) // value = 1
@ -505,6 +507,7 @@ static RenderState s_renderStates[RenderState::Count] =
{ // StencilReflection_DrawReflected
BGFX_STATE_RGB_WRITE
| BGFX_STATE_ALPHA_WRITE
| BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_SRC_ALPHA, BGFX_STATE_BLEND_INV_SRC_ALPHA)
| BGFX_STATE_DEPTH_WRITE
| BGFX_STATE_DEPTH_TEST_LESS
| BGFX_STATE_CULL_CW //reflection matrix has inverted normals. using CCW instead of CW.
@ -518,22 +521,11 @@ static RenderState s_renderStates[RenderState::Count] =
| BGFX_STENCIL_OP_PASS_Z_KEEP
, BGFX_STENCIL_NONE
},
{ // StencilReflection_DarkenReflections
BGFX_STATE_RGB_WRITE
| BGFX_STATE_DEPTH_WRITE
| BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_ZERO, BGFX_STATE_BLEND_FACTOR)
| BGFX_STATE_DEPTH_TEST_LESS
| BGFX_STATE_CULL_CCW
| BGFX_STATE_MSAA
, UINT32_MAX
, BGFX_STENCIL_NONE
, BGFX_STENCIL_NONE
},
{ // StencilReflection_BlendPlane
BGFX_STATE_RGB_WRITE
| BGFX_STATE_DEPTH_WRITE
| BGFX_STATE_BLEND_LIGHTEN
| BGFX_STATE_DEPTH_TEST_EQUAL
| 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
@ -1091,6 +1083,7 @@ int _main_(int /*_argc*/, char** /*_argv*/)
s_uniforms.m_params.m_lightningPass = 1.0f;
s_uniforms.m_params.m_lightCount = settings_numLights;
s_uniforms.m_params.m_lightIndex = 0.0f;
s_uniforms.m_color[3] = settings_reflectionValue;
s_uniforms.submitPerFrameUniforms();
// Time.
@ -1239,6 +1232,9 @@ int _main_(int /*_argc*/, char** /*_argv*/)
// Second pass - Draw reflected objects.
// Clear depth from previous pass.
clearView(RENDER_VIEWID_RANGE1_PASS_1, BGFX_CLEAR_DEPTH_BIT, clearValues);
// Compute reflected matrix.
float reflectMtx[16];
float plane_pos[3] = { 0.0f, 0.01f, 0.0f };
@ -1278,37 +1274,20 @@ int _main_(int /*_argc*/, char** /*_argv*/)
// Set lights back.
memcpy(s_uniforms.m_lightPosRadius, lightPosRadius, numLights * 4*sizeof(float));
// Third pass - Darken reflected objects.
uint8_t val = uint8_t(settings_reflectionValue * UINT8_MAX);
uint32_t factor = (val << 24)
| (val << 16)
| (val << 8 )
| (val << 0 )
;
s_renderStates[RenderState::StencilReflection_DarkenReflections].m_blendFactorRgba = factor;
// Third pass - Blend plane.
// Floor.
hplaneMesh.submit(RENDER_VIEWID_RANGE1_PASS_2
, floorMtx
, programColorBlack
, s_renderStates[RenderState::StencilReflection_DarkenReflections]
);
// Fourth pass - Draw plane. (blend plane with what's behind it)
// Floor.
hplaneMesh.submit(RENDER_VIEWID_RANGE1_PASS_3
, floorMtx
, programTextureLightning
, s_renderStates[RenderState::StencilReflection_BlendPlane]
, fieldstoneTex
);
// Fifth pass - Draw everything else but the plane.
// Fourth pass - Draw everything else but the plane.
// Bunny.
bunnyMesh.submit(RENDER_VIEWID_RANGE1_PASS_4
bunnyMesh.submit(RENDER_VIEWID_RANGE1_PASS_3
, bunnyMtx
, programColorLightning
, s_renderStates[RenderState::StencilReflection_DrawScene]
@ -1317,7 +1296,7 @@ int _main_(int /*_argc*/, char** /*_argv*/)
// Columns.
for (uint8_t ii = 0; ii < 4; ++ii)
{
columnMesh.submit(RENDER_VIEWID_RANGE1_PASS_4
columnMesh.submit(RENDER_VIEWID_RANGE1_PASS_3
, columnMtx[ii]
, programColorLightning
, s_renderStates[RenderState::StencilReflection_DrawScene]