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69 lines
1.6 KiB
GLSL
69 lines
1.6 KiB
GLSL
#version 120
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#if @useUBO
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#extension GL_ARB_uniform_buffer_object : require
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#endif
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#if @useGPUShader4
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#extension GL_EXT_gpu_shader4: require
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#endif
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#include "lib/core/vertex.h.glsl"
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#if @diffuseMap
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varying vec2 diffuseMapUV;
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#endif
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varying vec3 passNormal;
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varying vec3 passViewPos;
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varying float euclideanDepth;
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varying float linearDepth;
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varying float passFalloff;
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uniform bool useFalloff;
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uniform vec4 falloffParams;
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#include "lib/view/depth.glsl"
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#include "compatibility/vertexcolors.glsl"
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#include "compatibility/shadows_vertex.glsl"
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void main(void)
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{
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gl_Position = modelToClip(gl_Vertex);
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vec4 viewPos = modelToView(gl_Vertex);
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gl_ClipVertex = viewPos;
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euclideanDepth = length(viewPos.xyz);
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linearDepth = getLinearDepth(gl_Position.z, viewPos.z);
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#if @diffuseMap
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diffuseMapUV = (gl_TextureMatrix[@diffuseMapUV] * gl_MultiTexCoord@diffuseMapUV).xy;
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#endif
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passColor = gl_Color;
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passViewPos = viewPos.xyz;
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passNormal = gl_Normal.xyz;
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if (useFalloff)
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{
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vec3 viewNormal = gl_NormalMatrix * normalize(gl_Normal.xyz);
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vec3 viewDir = normalize(viewPos.xyz);
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float viewAngle = abs(dot(viewNormal, viewDir));
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passFalloff = smoothstep(falloffParams.x, falloffParams.y, viewAngle);
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float startOpacity = min(falloffParams.z, 1.0);
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float stopOpacity = max(falloffParams.w, 0.0);
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passFalloff = mix(startOpacity, stopOpacity, passFalloff);
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}
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else
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{
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passFalloff = 1.0;
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}
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#if @shadows_enabled
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vec3 viewNormal = normalize(gl_NormalMatrix * passNormal);
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setupShadowCoords(viewPos, viewNormal);
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#endif
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}
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