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unified vertex warp into gbuffers_basic

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Valerie Wolfe 2024-04-10 10:36:42 -04:00
parent f056ae3f4d
commit 6b7a23bf55
4 changed files with 0 additions and 44 deletions
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0
shaders/gbuffers_entities.fsh → shaders/gbuffers_basic.fsh
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0
shaders/gbuffers_terrain.vsh → shaders/gbuffers_basic.vsh
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29
shaders/gbuffers_entities.vsh
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@ -1,29 +0,0 @@
#version 120
varying vec2 texcoord;
varying vec4 color;
varying vec2 lmcoord;
uniform mat4 gbufferModelView, gbufferModelViewInverse;
uniform float viewWidth, viewHeight;
#define pixelSize 2 // [1 2 4 8 16]
#define vWarp 0 // psx vertex warp [0 1 2 4 8 16 32]
void main() {
texcoord = (gl_TextureMatrix[0] * gl_MultiTexCoord0).xy;
lmcoord = (gl_TextureMatrix[1] * gl_MultiTexCoord1).xy;
color = gl_Color;
#ifdef vWarp
float mod = pixelSize * vWarp;
vec2 screen = vec2(viewWidth / mod, viewHeight / mod);
vec4 position = gbufferModelViewInverse * gl_ModelViewMatrix * gl_Vertex;
vec2 nearest = round(position.xy / position.w * screen) / screen;
position.xy = nearest;
gl_Position = gl_ProjectionMatrix * gbufferModelView * position;
#else
gl_Position = ftransform();
#endif
}

15
shaders/gbuffers_terrain.fsh
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#version 120
varying vec2 texcoord;
varying vec4 color;
varying vec2 lmcoord;
uniform sampler2D texture;
uniform sampler2D lightmap;
void main() {
vec4 final = texture2D(texture, texcoord) * color;
final *= texture2D(lightmap, lmcoord);
gl_FragData[0] = final;
}