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Modifications to shadowmapping example

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Change-Id: Idd0589033b56d82ba59258812a3bc0ecbc540ef3

Signed-off-by: saschawillems <webmaster@saschawillems.de>
This commit is contained in:
Steve Hill 2017-07-27 10:36:47 +01:00 • committed by saschawillems
parent 2156fdddc6
commit 286d589497
3 changed files with 8 additions and 13 deletions
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19
data/shaders/shadowmapping/scene.frag
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@ -3,7 +3,7 @@
#extension GL_ARB_separate_shader_objects : enable
#extension GL_ARB_shading_language_420pack : enable
layout (binding = 1) uniform sampler2D shadowMap;
layout (binding = 1) uniform sampler2DShadow shadowMap;
layout (location = 0) in vec3 inNormal;
layout (location = 1) in vec3 inColor;
@ -19,23 +19,16 @@ layout (location = 0) out vec4 outFragColor;
float textureProj(vec4 P, vec2 off)
{
float shadow = 1.0;
vec4 shadowCoord = P / P.w;
if ( shadowCoord.z > -1.0 && shadowCoord.z < 1.0 )
{
float dist = texture( shadowMap, shadowCoord.st + off ).r;
if ( shadowCoord.w > 0.0 && dist < shadowCoord.z )
{
shadow = ambient;
}
}
float shadow = 1.0;
if (textureProj(shadowMap, P + vec4(off, 0.0, 0.0)) == 0.0)
shadow = ambient;
return shadow;
}
float filterPCF(vec4 sc)
{
ivec2 texDim = textureSize(shadowMap, 0);
float scale = 1.5;
float scale = 0.5;
float dx = scale * 1.0 / float(texDim.x);
float dy = scale * 1.0 / float(texDim.y);
@ -68,4 +61,4 @@ void main()
outFragColor = vec4(diffuse * shadow, 1.0);
}
}

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data/shaders/shadowmapping/scene.frag.spv
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2
shadowmapping/shadowmapping.cpp
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@ -299,6 +299,8 @@ public:
sampler.minLod = 0.0f;
sampler.maxLod = 1.0f;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
sampler.compareEnable = true;
sampler.compareOp = VK_COMPARE_OP_LESS;
VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &offscreenPass.depthSampler));
prepareOffscreenRenderpass();