From 847962910f0bff071f3bf07c9abb87764fb6cac3 Mon Sep 17 00:00:00 2001 From: claude-bot Date: Mon, 13 Jul 2026 12:40:03 +0000 Subject: Import aap/librw @ master Snapshot for re3/reVC vendoring, per @lzcnt. Source: https://github.com/aap/librw (master). --- src/d3d/shaders/matfx_env_PS.hlsl | 42 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 src/d3d/shaders/matfx_env_PS.hlsl (limited to 'src/d3d/shaders/matfx_env_PS.hlsl') diff --git a/src/d3d/shaders/matfx_env_PS.hlsl b/src/d3d/shaders/matfx_env_PS.hlsl new file mode 100644 index 0000000..eb5187d --- /dev/null +++ b/src/d3d/shaders/matfx_env_PS.hlsl @@ -0,0 +1,42 @@ +struct VS_out { + float4 Position : POSITION; + float3 TexCoord0 : TEXCOORD0; + float2 TexCoord1 : TEXCOORD1; + float4 Color : COLOR0; + float4 EnvColor : COLOR1; +}; + +sampler2D diffTex : register(s0); +sampler2D envTex : register(s1); + +float4 fogColor : register(c0); + +float4 fxparams : register(c1); + +#define shininess (fxparams.x) +#define disableFBA (fxparams.y) + +float4 main(VS_out input) : COLOR +{ + float4 pass1 = input.Color; +#ifdef TEX + pass1 *= tex2D(diffTex, input.TexCoord0.xy); +#endif + + float4 pass2 = input.EnvColor*shininess*tex2D(envTex, input.TexCoord1.xy); + + pass1.rgb = lerp(fogColor.rgb, pass1.rgb, input.TexCoord0.z); + pass2.rgb = lerp(float3(0.0, 0.0, 0.0), pass2.rgb, input.TexCoord0.z); + + // We simulate drawing this in two passes. + // First pass with standard blending, second with addition + // We premultiply alpha so render state should be one. + // For FB alpha rendering assume that diffuse alpha (pass1.a) was + // written to framebuffer, so just multiply pass2 by it as well then. + float fba = max(pass1.a, disableFBA); + float4 color; + color.rgb = pass1.rgb*pass1.a + pass2.rgb*fba; + color.a = pass1.a; + + return color; +} -- cgit v1.2.3