X-Git-Url: https://git.xonotic.org/?a=blobdiff_plain;f=shader_hlsl.h;h=c93d4724ddcf2934344e261e34ccac0a2aa1af2a;hb=eb3110f1151a26dafff642d6214c562a4851de91;hp=41aa34e23e71e89ca4e3ff168c26bbcd939741eb;hpb=383102ae6545d24a9940f7f580d3c240e4a54ddd;p=xonotic%2Fdarkplaces.git

diff --git a/shader_hlsl.h b/shader_hlsl.h
index 41aa34e2..c93d4724 100644
--- a/shader_hlsl.h
+++ b/shader_hlsl.h
@@ -27,6 +27,32 @@
 "#endif\n"
 "#endif\n"
 "\n"
+"#ifdef VERTEX_SHADER\n"
+"#ifdef USETRIPPY\n"
+"// LordHavoc: based on shader code linked at: http://www.youtube.com/watch?v=JpksyojwqzE\n"
+"// tweaked scale\n"
+"float4 TrippyVertex(float4 position)\n"
+"(\n"
+"uniform float ClientTime : register(c2)\n"
+")\n"
+"{\n"
+"	float worldTime = ClientTime;\n"
+"	// tweaked for Quake\n"
+"	worldTime *= 10.0;\n"
+"	position *= 0.125;\n"
+"	//~tweaked for Quake\n"
+"	float distanceSquared = (position.x * position.x + position.z * position.z);\n"
+"	position.y += 5.0*sin(distanceSquared*sin(worldTime/143.0)/1000.0);\n"
+"	float y = position.y;\n"
+"	float x = position.x;\n"
+"	float om = sin(distanceSquared*sin(worldTime/256.0)/5000.0) * sin(worldTime/200.0);\n"
+"	position.y = x*sin(om)+y*cos(om);\n"
+"	position.x = x*cos(om)-y*sin(om);\n"
+"	return position;\n"
+"}\n"
+"#endif\n"
+"#endif\n"
+"\n"
 "#ifdef MODE_DEPTH_OR_SHADOW\n"
 "#ifdef VERTEX_SHADER\n"
 "void main\n"
@@ -38,6 +64,9 @@
 ")\n"
 "{\n"
 "	gl_Position = mul(ModelViewProjectionMatrix, gl_Vertex);\n"
+"#ifdef USETRIPPY\n"
+"	gl_Position = TrippyVertex(gl_Position);\n"
+"#endif\n"
 "	Depth = gl_Position.z;\n"
 "}\n"
 "#endif\n"
@@ -72,6 +101,9 @@
 ")\n"
 "{\n"
 "	gl_Position = mul(ModelViewProjectionMatrix, gl_Vertex);\n"
+"#ifdef USETRIPPY\n"
+"	gl_Position = TrippyVertex(gl_Position);\n"
+"#endif\n"
 "	gl_FrontColor = float4(gl_Position.z, gl_Position.z, gl_Position.z, 1.0);\n"
 "}\n"
 "#endif\n"
@@ -244,6 +276,9 @@
 "	TexCoord2 = gl_MultiTexCoord1.xy;\n"
 "#endif\n"
 "	gl_Position = mul(ModelViewProjectionMatrix, gl_Vertex);\n"
+"#ifdef USETRIPPY\n"
+"	gl_Position = TrippyVertex(gl_Position);\n"
+"#endif\n"
 "}\n"
 "#endif\n"
 "\n"
@@ -348,6 +383,9 @@
 "	TexCoord = mul(TexMatrix, gl_MultiTexCoord0).xy;\n"
 "	gl_Position = mul(ModelViewProjectionMatrix, gl_Vertex);\n"
 "	ModelViewProjectionPosition = gl_Position;\n"
+"#ifdef USETRIPPY\n"
+"	gl_Position = TrippyVertex(gl_Position);\n"
+"#endif\n"
 "}\n"
 "#endif\n"
 "\n"
@@ -415,6 +453,9 @@
 "	EyeVector.z = dot(EyeVectorModelSpace, gl_MultiTexCoord3.xyz);\n"
 "	gl_Position = mul(ModelViewProjectionMatrix, gl_Vertex);\n"
 "	ModelViewProjectionPosition = gl_Position;\n"
+"#ifdef USETRIPPY\n"
+"	gl_Position = TrippyVertex(gl_Position);\n"
+"#endif\n"
 "}\n"
 "#endif\n"
 "\n"
@@ -475,7 +516,7 @@
 "float3 FogVertex(float4 surfacecolor, float3 FogColor, float3 EyeVectorModelSpace, float FogPlaneVertexDist, float FogRangeRecip, float FogPlaneViewDist, float FogHeightFade, sampler Texture_FogMask, sampler Texture_FogHeightTexture)\n"
 "{\n"
 "	float fogfrac;\n"
-"	float3 fc = Fogcolor;\n"
+"	float3 fc = FogColor;\n"
 "#ifdef USEFOGALPHAHACK\n"
 "	fc *= surfacecolor.a;\n"
 "#endif\n"
@@ -495,41 +536,32 @@
 "#endif\n"
 "\n"
 "#ifdef USEOFFSETMAPPING\n"
-"float2 OffsetMapping(float2 TexCoord, float OffsetMapping_Scale, float3 EyeVector, sampler Texture_Normal, float2 dPdx, float2 dPdy)\n"
+"float2 OffsetMapping(float2 TexCoord, float4 OffsetMapping_ScaleSteps, float3 EyeVector, sampler Texture_Normal, float2 dPdx, float2 dPdy)\n"
 "{\n"
+"	float i;\n"
 "#ifdef USEOFFSETMAPPING_RELIEFMAPPING\n"
 "	// 14 sample relief mapping: linear search and then binary search\n"
 "	// this basically steps forward a small amount repeatedly until it finds\n"
 "	// itself inside solid, then jitters forward and back using decreasing\n"
 "	// amounts to find the impact\n"
-"	//float3 OffsetVector = float3(EyeVector.xy * ((1.0 / EyeVector.z) * OffsetMapping_Scale) * float2(-1, 1), -1);\n"
-"	//float3 OffsetVector = float3(normalize(EyeVector.xy) * OffsetMapping_Scale * float2(-1, 1), -1);\n"
-"	float3 OffsetVector = float3(normalize(EyeVector).xy * OffsetMapping_Scale * float2(-1, 1), -1);\n"
+"	//float3 OffsetVector = float3(EyeVector.xy * ((1.0 / EyeVector.z) * OffsetMapping_ScaleSteps.x) * float2(-1, 1), -1);\n"
+"	//float3 OffsetVector = float3(normalize(EyeVector.xy) * OffsetMapping_ScaleSteps.x * float2(-1, 1), -1);\n"
+"	float3 OffsetVector = float3(normalize(EyeVector).xy * OffsetMapping_ScaleSteps.x * float2(-1, 1), -1);\n"
 "	float3 RT = float3(TexCoord, 1);\n"
-"	OffsetVector *= 0.1;\n"
-"	RT += OffsetVector *  step(tex2Dgrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z);\n"
-"	RT += OffsetVector *  step(tex2Dgrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z);\n"
-"	RT += OffsetVector *  step(tex2Dgrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z);\n"
-"	RT += OffsetVector *  step(tex2Dgrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z);\n"
-"	RT += OffsetVector *  step(tex2Dgrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z);\n"
-"	RT += OffsetVector *  step(tex2Dgrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z);\n"
-"	RT += OffsetVector *  step(tex2Dgrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z);\n"
-"	RT += OffsetVector *  step(tex2Dgrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z);\n"
-"	RT += OffsetVector *  step(tex2Dgrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z);\n"
-"	RT += OffsetVector * (step(tex2Dgrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z)          - 0.5);\n"
-"	RT += OffsetVector * (step(tex2Dgrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z) * 0.5    - 0.25);\n"
-"	RT += OffsetVector * (step(tex2Dgrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z) * 0.25   - 0.125);\n"
-"	RT += OffsetVector * (step(tex2Dgrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z) * 0.125  - 0.0625);\n"
-"	RT += OffsetVector * (step(tex2Dgrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z) * 0.0625 - 0.03125);\n"
+"	OffsetVector *= OffsetMapping_ScaleSteps.z;\n"
+"	for(i = 1.0; i < OffsetMapping_ScaleSteps.y; ++i)\n"
+"		RT += OffsetVector *  step(tex2Dgrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z);\n"
+"	for(i = 0.0, f = 1.0; i < OffsetMapping_ScaleSteps.w; ++i, f *= 0.5)\n"
+"		RT += OffsetVector * (step(tex2Dgrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z) * f - 0.5 * f);\n"
 "	return RT.xy;\n"
 "#else\n"
 "	// 2 sample offset mapping (only 2 samples because of ATI Radeon 9500-9800/X300 limits)\n"
-"	//float2 OffsetVector = float2(EyeVector.xy * ((1.0 / EyeVector.z) * OffsetMapping_Scale) * float2(-1, 1));\n"
-"	//float2 OffsetVector = float2(normalize(EyeVector.xy) * OffsetMapping_Scale * float2(-1, 1));\n"
-"	float2 OffsetVector = float2(normalize(EyeVector).xy * OffsetMapping_Scale * float2(-1, 1));\n"
-"	OffsetVector *= 0.5;\n"
-"	TexCoord += OffsetVector * (1.0 - tex2Dgrad(Texture_Normal, TexCoord, dPdx, dPdy).a);\n"
-"	TexCoord += OffsetVector * (1.0 - tex2Dgrad(Texture_Normal, TexCoord, dPdx, dPdy).a);\n"
+"	//float2 OffsetVector = float2(EyeVector.xy * ((1.0 / EyeVector.z) * OffsetMapping_ScaleSteps.x) * float2(-1, 1));\n"
+"	//float2 OffsetVector = float2(normalize(EyeVector.xy) * OffsetMapping_ScaleSteps.x * float2(-1, 1));\n"
+"	float2 OffsetVector = float2(normalize(EyeVector).xy * OffsetMapping_ScaleSteps.x * float2(-1, 1));\n"
+"	OffsetVector *= OffsetMapping_ScaleSteps.z;\n"
+"	for(i = 0.0; i < OffsetMapping_ScaleSteps.y; ++i)\n"
+"		TexCoord += OffsetVector * (1.0 - tex2Dgrad(Texture_Normal, TexCoord, dPdx, dPdy).a);\n"
 "	return TexCoord;\n"
 "#endif\n"
 "}\n"
@@ -720,6 +752,9 @@
 "	VectorT = mul(ModelViewMatrix, float4(gl_MultiTexCoord2.xyz, 0)).xyz;\n"
 "	VectorR.xyz = mul(ModelViewMatrix, float4(gl_MultiTexCoord3.xyz, 0)).xyz;\n"
 "	gl_Position = mul(ModelViewProjectionMatrix, gl_Vertex);\n"
+"#ifdef USETRIPPY\n"
+"	gl_Position = TrippyVertex(gl_Position);\n"
+"#endif\n"
 "	VectorR.w = gl_Position.z;\n"
 "}\n"
 "#endif // VERTEX_SHADER\n"
@@ -742,7 +777,7 @@
 "uniform sampler Texture_SecondaryGloss : register(s6),\n"
 "#endif\n"
 "#ifdef USEOFFSETMAPPING\n"
-"uniform float OffsetMapping_Scale : register(c24),\n"
+"uniform float4 OffsetMapping_ScaleSteps : register(c24),\n"
 "#endif\n"
 "uniform half SpecularPower : register(c36),\n"
 "#ifdef HLSL\n"
@@ -758,7 +793,7 @@
 "	// apply offsetmapping\n"
 "	float2 dPdx = ddx(TexCoord);\n"
 "	float2 dPdy = ddy(TexCoord);\n"
-"	float2 TexCoordOffset = OffsetMapping(TexCoord, OffsetMapping_Scale, EyeVector, Texture_Normal, dPdx, dPdy);\n"
+"	float2 TexCoordOffset = OffsetMapping(TexCoord, OffsetMapping_ScaleSteps, EyeVector, Texture_Normal, dPdx, dPdy);\n"
 "# define offsetMappedTexture2D(t) tex2Dgrad(t, TexCoordOffset, dPdx, dPdy)\n"
 "#else\n"
 "# define offsetMappedTexture2D(t) tex2D(t, TexCoord)\n"
@@ -1062,6 +1097,9 @@
 "#ifdef USEREFLECTION\n"
 "	ModelViewProjectionPosition = gl_Position;\n"
 "#endif\n"
+"#ifdef USETRIPPY\n"
+"	gl_Position = TrippyVertex(gl_Position);\n"
+"#endif\n"
 "}\n"
 "#endif // VERTEX_SHADER\n"
 "\n"
@@ -1169,7 +1207,7 @@
 "#endif\n"
 "\n"
 "#ifdef USEOFFSETMAPPING\n"
-"uniform float OffsetMapping_Scale : register(c24),\n"
+"uniform float4 OffsetMapping_ScaleSteps : register(c24),\n"
 "#endif\n"
 "\n"
 "#ifdef USEDEFERREDLIGHTMAP\n"
@@ -1239,7 +1277,7 @@
 "	// apply offsetmapping\n"
 "	float2 dPdx = ddx(TexCoord);\n"
 "	float2 dPdy = ddy(TexCoord);\n"
-"	float2 TexCoordOffset = OffsetMapping(TexCoord, OffsetMapping_Scale, EyeVector, Texture_Normal, dPdx, dPdy);\n"
+"	float2 TexCoordOffset = OffsetMapping(TexCoord, OffsetMapping_ScaleSteps, EyeVector, Texture_Normal, dPdx, dPdy);\n"
 "# define offsetMappedTexture2D(t) tex2Dgrad(t, TexCoordOffset, dPdx, dPdy)\n"
 "#else\n"
 "# define offsetMappedTexture2D(t) tex2D(t, TexCoord)\n"
@@ -1256,6 +1294,11 @@
 "	color.rgb += half3(offsetMappedTexture2D(Texture_Pants).rgb) * Color_Pants + half3(offsetMappedTexture2D(Texture_Shirt).rgb) * Color_Shirt;\n"
 "#endif\n"
 "#ifdef USEVERTEXTEXTUREBLEND\n"
+"#ifdef USEBOTHALPHAS\n"
+"	half4 color2 = half4(tex2D(Texture_SecondaryColor, TexCoord2));\n"
+"	half terrainblend = clamp(half(gl_FrontColor.a) * color.a, half(1.0 - color2.a), half(1.0));\n"
+"	color.rgb = lerp(color2.rgb, color.rgb, terrainblend);\n"
+"#else\n"
 "	half terrainblend = clamp(half(gl_FrontColor.a) * color.a * 2.0 - 0.5, half(0.0), half(1.0));\n"
 "	//half terrainblend = min(half(gl_FrontColor.a) * color.a * 2.0, half(1.0));\n"
 "	//half terrainblend = half(gl_FrontColor.a) * color.a > 0.5;\n"
@@ -1263,6 +1306,7 @@
 "	color.a = 1.0;\n"
 "	//color = half4(lerp(float4(1, 0, 0, 1), color, terrainblend));\n"
 "#endif\n"
+"#endif\n"
 "\n"
 "	// get the surface normal\n"
 "#ifdef USEVERTEXTEXTUREBLEND\n"
@@ -1450,7 +1494,7 @@
 "#endif\n"
 "\n"
 "#ifdef USEFOG\n"
-"	color.rgb = FogVertex(color, FogColor, EyeVectorModelSpaceFogPlaneVertexDist.xyz, EyeVectorModelSpaceFogPlaneVertexDist.w, FogRangeRecip, FogPlaneViewDist, FogHeightFade, Texture_FogMask, Texture_FogHeightTexture);\n"
+"	color.rgb = half3(FogVertex(color, FogColor, EyeVectorModelSpaceFogPlaneVertexDist.xyz, EyeVectorModelSpaceFogPlaneVertexDist.w, FogRangeRecip, FogPlaneViewDist, FogHeightFade, Texture_FogMask, Texture_FogHeightTexture));\n"
 "#endif\n"
 "\n"
 "	// reflection must come last because it already contains exactly the correct fog (the reflection render preserves camera distance from the plane, it only flips the side) and ContrastBoost/SceneBrightness\n"