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NixOS-configs/modules/wallpaper-engine/shaders/passthroughblend.vert
2025-04-29 13:39:02 -05:00

41 lines
1.0 KiB
GLSL

uniform mat4 g_ModelViewProjectionMatrix;
attribute vec3 a_Position;
attribute vec2 a_TexCoord;
varying vec2 v_TexCoord;
varying vec3 v_ScreenCoord;
#if SKINNING
uniform mat4x3 g_Bones[BONECOUNT];
attribute uvec4 a_BlendIndices;
attribute vec4 a_BlendWeights;
#endif
void main() {
#if SKINNING
vec3 localPos = mul(vec4(a_Position, 1.0), g_Bones[a_BlendIndices[0]]) * a_BlendWeights[0] +
mul(vec4(a_Position, 1.0), g_Bones[a_BlendIndices[1]]) * a_BlendWeights[1] +
mul(vec4(a_Position, 1.0), g_Bones[a_BlendIndices[2]]) * a_BlendWeights[2] +
mul(vec4(a_Position, 1.0), g_Bones[a_BlendIndices[3]]) * a_BlendWeights[3];
#else
vec3 localPos = a_Position;
#endif
#ifdef TRANSFORM
gl_Position = mul(vec4(localPos, 1.0), g_ModelViewProjectionMatrix);
v_ScreenCoord = gl_Position.xyw;
#else
gl_Position = vec4(localPos, 1.0);
v_ScreenCoord = mul(vec4(localPos, 1.0), g_ModelViewProjectionMatrix).xyw;
#endif
#ifdef HLSL
v_ScreenCoord.y = -v_ScreenCoord.y;
#endif
v_TexCoord = a_TexCoord;
}