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Shader parameter [skip ci]

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saschawillems 2017-02-23 21:21:20 +01:00
parent cdf8c68d9e
commit 1d0938a001
3 changed files with 4 additions and 4 deletions
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6
data/shaders/pbr/pbr.frag
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@ -86,7 +86,7 @@ float PBR_Shade(vec3 N, vec3 V, vec3 L, float roughness, float F0)
// Visibility term
float Vs = GEOM_SchlickSmith(dotNL, dotNV, alpha);
return dotNL * Di * Fs * Vs;
return Di * Fs * Vs;
}
// ----------------------------------------------------------------------------
@ -118,7 +118,7 @@ void main()
vec3 IBLreflection = texture(envmapiblrefl, inNormal).rgb;
// Fresnel part
float fresnel = pow(max(1.0 - dot(N, V), 0.0), 1.5);
float fresnel = pow(max(1.0 - abs(dot(N, V)), 0.0), 1.5f + roughness);
// Reflection part
@ -134,7 +134,7 @@ void main()
// F0 based on metallic factor of material
vec3 F0 = vec3(0.04);
F0 = mix(F0, lightColor, material.metallic);
vec3 spec = lightColor * PBR_Shade(N, V, L, roughness, 0.2);
vec3 spec = lightColor * PBR_Shade(N, V, L, roughness, F0.r);
reflection -= spec;
// Diffuse part

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data/shaders/pbr/pbr.frag.spv
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2
pbr/pbr.cpp
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@ -196,7 +196,7 @@ public:
glm::vec3 pos = glm::vec3(float(x - (GRID_DIM / 2.0f)) * 2.5f, 0.0f, float(y - (GRID_DIM / 2.0f)) * 2.5f);
vkCmdPushConstants(drawCmdBuffers[i], pipelineLayout, VK_SHADER_STAGE_VERTEX_BIT, 0, sizeof(glm::vec3), &pos);
mat.metallic = (float)x / (float)GRID_DIM;
mat.roughness = glm::clamp((float)y / (float)(GRID_DIM - 1), 0.05f, 1.0f);
mat.roughness = (float)y / (float)GRID_DIM;
vkCmdPushConstants(drawCmdBuffers[i], pipelineLayout, VK_SHADER_STAGE_FRAGMENT_BIT, sizeof(glm::vec3), sizeof(Material), &mat);
vkCmdDrawIndexed(drawCmdBuffers[i], models.objects[models.objectIndex].indexCount, 1, 0, 0, 0);
}