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Add example for projective texture.

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This commit is contained in:
yunfeibai
2018-02-11 13:50:45 -08:00
parent 0bebf86b50
commit 08548e1ef0
8 changed files with 163 additions and 20 deletions
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8
examples/OpenGLWindow/Shaders/useShadowMapInstancingPS.glsl
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@@ -12,11 +12,9 @@ in Vert
} vert;
uniform sampler2D Diffuse;
uniform sampler2DShadow shadowMap;
uniform mat4 ViewMatrixInverse;
in vec3 lightPos,cameraPosition, normal,ambient;
in vec4 ShadowCoord;
in vec4 vertexPos;
in float materialShininess;
in vec3 lightSpecularIntensity;
@@ -28,7 +26,7 @@ out vec4 color;
void main(void)
{
vec4 texel = fragment.color*texture(Diffuse,vert.texcoord);
vec4 texel = fragment.color*texture(Diffuse,vert.texcoord.xy);
vec3 ct,cf;
float intensity,at,af;
if (fragment.color.w==0)
@@ -65,9 +63,7 @@ void main(void)
}
float visibility = texture(shadowMap, vec3(ShadowCoord.xy,(ShadowCoord.z)/ShadowCoord.w));
if (intensity<0.5)
visibility = 0;
float visibility = 1.0;
intensity = 0.7*intensity + 0.3*intensity*visibility;

8
examples/OpenGLWindow/Shaders/useShadowMapInstancingPS.h
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@@ -11,10 +11,8 @@ static const char* useShadowMapInstancingFragmentShader= \
" vec2 texcoord;\n"
"} vert;\n"
"uniform sampler2D Diffuse;\n"
"uniform sampler2DShadow shadowMap;\n"
"uniform mat4 ViewMatrixInverse;\n"
"in vec3 lightPos,cameraPosition, normal,ambient;\n"
"in vec4 ShadowCoord;\n"
"in vec4 vertexPos;\n"
"in float materialShininess;\n"
"in vec3 lightSpecularIntensity;\n"
@@ -22,7 +20,7 @@ static const char* useShadowMapInstancingFragmentShader= \
"out vec4 color;\n"
"void main(void)\n"
"{\n"
" vec4 texel = fragment.color*texture(Diffuse,vert.texcoord);\n"
" vec4 texel = fragment.color*texture(Diffuse,vert.texcoord.xy);\n"
" vec3 ct,cf;\n"
" float intensity,at,af;\n"
" if (fragment.color.w==0)\n"
@@ -58,9 +56,7 @@ static const char* useShadowMapInstancingFragmentShader= \
" \n"
" }\n"
" \n"
" float visibility = texture(shadowMap, vec3(ShadowCoord.xy,(ShadowCoord.z)/ShadowCoord.w));\n"
" if (intensity<0.5)\n"
" visibility = 0;\n"
" float visibility = 1.0;\n"
" intensity = 0.7*intensity + 0.3*intensity*visibility;\n"
" \n"
" cf = intensity*(vec3(1.0,1.0,1.0)-ambient)+ambient+specularReflection*visibility;\n"

4
examples/OpenGLWindow/Shaders/useShadowMapInstancingVS.glsl
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@@ -91,9 +91,9 @@ void main(void)
vec4 vertexLoc = MVP* vec4((instance_position+localcoord).xyz,1);
gl_Position = vertexLoc;
ShadowCoord = DepthBiasModelViewProjectionMatrix * vec4((instance_position+localcoord).xyz,1);
fragment.color = instance_color;
vert.texcoord = uvcoords;
vec4 projcoords = DepthBiasModelViewProjectionMatrix * vec4((instance_position+localcoord).xyz,1);
vert.texcoord = projcoords.xy;
}

4
examples/OpenGLWindow/Shaders/useShadowMapInstancingVS.h
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@@ -79,8 +79,8 @@ static const char* useShadowMapInstancingVertexShader= \
" \n"
" vec4 vertexLoc = MVP* vec4((instance_position+localcoord).xyz,1);\n"
" gl_Position = vertexLoc;\n"
" ShadowCoord = DepthBiasModelViewProjectionMatrix * vec4((instance_position+localcoord).xyz,1);\n"
" fragment.color = instance_color;\n"
" vert.texcoord = uvcoords;\n"
" vec4 projcoords = DepthBiasModelViewProjectionMatrix * vec4((instance_position+localcoord).xyz,1);\n"
" vert.texcoord = projcoords.xy;\n"
"}\n"
;