X-Git-Url: http://git.xonotic.org/?a=blobdiff_plain;f=shader_glsl.h;h=b02bd3c0a59cfea2031e7b2dc8acdb162d7870c8;hb=76ac9a336b02cf18504e9c3253294e8058cdc3dc;hp=fd94cbcced980d4b44223b8f7a64fa77efb7cdad;hpb=52b8812faa9c358731b61899cc994bcce9849ca6;p=xonotic%2Fdarkplaces.git

diff --git a/shader_glsl.h b/shader_glsl.h
index fd94cbcc..b02bd3c0 100644
--- a/shader_glsl.h
+++ b/shader_glsl.h
@@ -2,14 +2,8 @@
 "// written by Forest 'LordHavoc' Hale\n"
 "// shadowmapping enhancements by Lee 'eihrul' Salzman\n"
 "\n"
-"// GL ES shaders use precision modifiers, standard GL does not\n"
-"#ifndef GL_ES\n"
-"#define lowp\n"
-"#define mediump\n"
-"#define highp\n"
-"#endif\n"
-"\n"
 "#ifdef GLSL130\n"
+"precision highp float;\n"
 "# ifdef VERTEX_SHADER\n"
 "#  define dp_varying out\n"
 "#  define dp_attribute in\n"
@@ -20,7 +14,7 @@
 "#  define dp_attribute in\n"
 "# endif\n"
 "# define dp_offsetmapping_dFdx dFdx\n"
-"# define dp_offsetmapping_dFdy dFdx\n"
+"# define dp_offsetmapping_dFdy dFdy\n"
 "# define dp_textureGrad textureGrad\n"
 "# define dp_texture2D texture\n"
 "# define dp_texture3D texture\n"
@@ -41,6 +35,14 @@
 "# define dp_shadow2D(a,b) float(shadow2D(a,b))\n"
 "#endif\n"
 "\n"
+"// GL ES and GLSL130 shaders use precision modifiers, standard GL does not\n"
+"// in GLSL130 we don't use them though because of syntax differences (can't use precision with inout)\n"
+"#ifndef GL_ES\n"
+"#define lowp\n"
+"#define mediump\n"
+"#define highp\n"
+"#endif\n"
+"\n"
 "#ifdef VERTEX_SHADER\n"
 "dp_attribute vec4 Attrib_Position;  // vertex\n"
 "dp_attribute vec4 Attrib_Color;     // color\n"
@@ -95,11 +97,38 @@
 "uniform highp mat4 ModelViewProjectionMatrix;\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"
+"uniform highp float ClientTime;\n"
+"vec4 TrippyVertex(vec4 position)\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(void)\n"
 "{\n"
 "	gl_Position = ModelViewProjectionMatrix * Attrib_Position;\n"
+"#ifdef USETRIPPY\n"
+"	gl_Position = TrippyVertex(gl_Position);\n"
+"#endif\n"
 "}\n"
 "#endif\n"
 "#else // !MODE_DEPTH_ORSHADOW\n"
@@ -113,6 +142,9 @@
 "{\n"
 "	gl_Position = ModelViewProjectionMatrix * Attrib_Position;\n"
 "	VertexColor = vec4(gl_Position.z, gl_Position.z, gl_Position.z, 1.0);\n"
+"#ifdef USETRIPPY\n"
+"	gl_Position = TrippyVertex(gl_Position);\n"
+"#endif\n"
 "}\n"
 "#endif\n"
 "\n"
@@ -260,6 +292,9 @@
 "	TexCoord2 = Attrib_TexCoord1.xy;\n"
 "#endif\n"
 "	gl_Position = ModelViewProjectionMatrix * Attrib_Position;\n"
+"#ifdef USETRIPPY\n"
+"	gl_Position = TrippyVertex(gl_Position);\n"
+"#endif\n"
 "}\n"
 "#endif\n"
 "\n"
@@ -342,21 +377,21 @@
 "	TexCoord = vec2(TexMatrix * Attrib_TexCoord0);\n"
 "	gl_Position = ModelViewProjectionMatrix * Attrib_Position;\n"
 "	ModelViewProjectionPosition = gl_Position;\n"
+"#ifdef USETRIPPY\n"
+"	gl_Position = TrippyVertex(gl_Position);\n"
+"#endif\n"
 "}\n"
 "#endif\n"
 "\n"
 "#ifdef FRAGMENT_SHADER\n"
 "uniform sampler2D Texture_Normal;\n"
 "uniform sampler2D Texture_Refraction;\n"
-"uniform sampler2D Texture_Reflection;\n"
 "\n"
 "uniform mediump vec4 DistortScaleRefractReflect;\n"
 "uniform mediump vec4 ScreenScaleRefractReflect;\n"
 "uniform mediump vec4 ScreenCenterRefractReflect;\n"
 "uniform mediump vec4 RefractColor;\n"
 "uniform mediump vec4 ReflectColor;\n"
-"uniform mediump float ReflectFactor;\n"
-"uniform mediump float ReflectOffset;\n"
 "uniform highp float ClientTime;\n"
 "#ifdef USENORMALMAPSCROLLBLEND\n"
 "uniform highp vec2 NormalmapScrollBlend;\n"
@@ -370,9 +405,9 @@
 "	#ifdef USENORMALMAPSCROLLBLEND\n"
 "		vec3 normal = dp_texture2D(Texture_Normal, (TexCoord + vec2(0.08, 0.08)*ClientTime*NormalmapScrollBlend.x*0.5)*NormalmapScrollBlend.y).rgb - vec3(1.0);\n"
 "		normal += dp_texture2D(Texture_Normal, (TexCoord + vec2(-0.06, -0.09)*ClientTime*NormalmapScrollBlend.x)*NormalmapScrollBlend.y*0.75).rgb;\n"
-"		vec2 ScreenTexCoord = SafeScreenTexCoord + vec3(normalize(myhalf3(normal))).xy * DistortScaleRefractReflect.zw;\n"
+"		vec2 ScreenTexCoord = SafeScreenTexCoord + vec3(normalize(myhalf3(normal))).xy * DistortScaleRefractReflect.xy;\n"
 "	#else\n"
-"		vec2 ScreenTexCoord = SafeScreenTexCoord + vec3(normalize(myhalf3(dp_texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5))).xy * DistortScaleRefractReflect.zw;\n"
+"		vec2 ScreenTexCoord = SafeScreenTexCoord + vec3(normalize(myhalf3(dp_texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5))).xy * DistortScaleRefractReflect.xy;\n"
 "	#endif\n"
 "	// FIXME temporary hack to detect the case that the reflection\n"
 "	// gets blackened at edges due to leaving the area that contains actual\n"
@@ -409,6 +444,9 @@
 "	EyeVector.z = dot(EyeRelative, Attrib_TexCoord3.xyz);\n"
 "	gl_Position = ModelViewProjectionMatrix * Attrib_Position;\n"
 "	ModelViewProjectionPosition = gl_Position;\n"
+"#ifdef USETRIPPY\n"
+"	gl_Position = TrippyVertex(gl_Position);\n"
+"#endif\n"
 "}\n"
 "#endif\n"
 "\n"
@@ -609,11 +647,12 @@
 "#endif\n"
 "\n"
 "#ifdef USEOFFSETMAPPING\n"
-"uniform mediump vec3 OffsetMapping_ScaleSteps;\n"
+"uniform mediump vec4 OffsetMapping_ScaleSteps;\n"
 "vec2 OffsetMapping(vec2 TexCoord, vec2 dPdx, vec2 dPdy)\n"
 "{\n"
 "	float i;\n"
 "#ifdef USEOFFSETMAPPING_RELIEFMAPPING\n"
+"	float f;\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"
@@ -625,11 +664,8 @@
 "	OffsetVector *= OffsetMapping_ScaleSteps.z;\n"
 "	for(i = 1.0; i < OffsetMapping_ScaleSteps.y; ++i)\n"
 "		RT += OffsetVector *  step(dp_textureGrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z);\n"
-"	RT += OffsetVector * (step(dp_textureGrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z)          - 0.5);\n"
-"	RT += OffsetVector * (step(dp_textureGrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z) * 0.5    - 0.25);\n"
-"	RT += OffsetVector * (step(dp_textureGrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z) * 0.25   - 0.125);\n"
-"	RT += OffsetVector * (step(dp_textureGrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z) * 0.125  - 0.0625);\n"
-"	RT += OffsetVector * (step(dp_textureGrad(Texture_Normal, RT.xy, dPdx, dPdy).a, RT.z) * 0.0625 - 0.03125);\n"
+"	for(i = 0.0, f = 1.0; i < OffsetMapping_ScaleSteps.w; ++i, f *= 0.5)\n"
+"		RT += OffsetVector * (step(dp_textureGrad(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"
@@ -816,6 +852,9 @@
 "	VectorT = (ModelViewMatrix * vec4(Attrib_TexCoord2.xyz, 0));\n"
 "	VectorR = (ModelViewMatrix * vec4(Attrib_TexCoord3.xyz, 0));\n"
 "	gl_Position = ModelViewProjectionMatrix * Attrib_Position;\n"
+"#ifdef USETRIPPY\n"
+"	gl_Position = TrippyVertex(gl_Position);\n"
+"#endif\n"
 "}\n"
 "#endif // VERTEX_SHADER\n"
 "\n"
@@ -917,22 +956,26 @@
 "	fade *= ShadowMapCompare(CubeVector);\n"
 "#endif\n"
 "\n"
-"#ifdef USEDIFFUSE\n"
-"	gl_FragData[0] = vec4((DeferredColor_Ambient + DeferredColor_Diffuse * diffuse) * fade, 1.0);\n"
-"#else\n"
-"	gl_FragData[0] = vec4(DeferredColor_Ambient * fade, 1.0);\n"
-"#endif\n"
 "#ifdef USESPECULAR\n"
+"	gl_FragData[0] = vec4((DeferredColor_Ambient + DeferredColor_Diffuse * diffuse) * fade, 1.0);\n"
 "	gl_FragData[1] = vec4(DeferredColor_Specular * (specular * fade), 1.0);\n"
-"#else\n"
-"	gl_FragData[1] = vec4(0.0, 0.0, 0.0, 1.0);\n"
-"#endif\n"
-"\n"
 "# ifdef USECUBEFILTER\n"
 "	vec3 cubecolor = dp_textureCube(Texture_Cube, CubeVector).rgb;\n"
 "	gl_FragData[0].rgb *= cubecolor;\n"
 "	gl_FragData[1].rgb *= cubecolor;\n"
 "# endif\n"
+"#else\n"
+"# ifdef USEDIFFUSE\n"
+"	gl_FragColor = vec4((DeferredColor_Ambient + DeferredColor_Diffuse * diffuse) * fade, 1.0);\n"
+"# else\n"
+"	gl_FragColor = vec4(DeferredColor_Ambient * fade, 1.0);\n"
+"# endif\n"
+"# ifdef USECUBEFILTER\n"
+"	vec3 cubecolor = dp_textureCube(Texture_Cube, CubeVector).rgb;\n"
+"	gl_FragColor.rgb *= cubecolor;\n"
+"# endif\n"
+"#endif\n"
+"	\n"
 "}\n"
 "#endif // FRAGMENT_SHADER\n"
 "#else // !MODE_DEFERREDLIGHTSOURCE\n"
@@ -971,6 +1014,9 @@
 "\n"
 "#ifdef USEBOUNCEGRID\n"
 "	BounceGridTexCoord = vec3(BounceGridMatrix * Attrib_Position);\n"
+"#ifdef USEBOUNCEGRIDDIRECTIONAL\n"
+"	BounceGridTexCoord.z *= 0.125;\n"
+"#endif\n"
 "#endif\n"
 "\n"
 "#ifdef MODE_LIGHTSOURCE\n"
@@ -1025,7 +1071,7 @@
 "# endif\n"
 "#endif\n"
 "\n"
-"	// transform vertex to camera space, using ftransform to match non-VS rendering\n"
+"	// transform vertex to clipspace (post-projection, but before perspective divide by W occurs)\n"
 "	gl_Position = ModelViewProjectionMatrix * Attrib_Position;\n"
 "\n"
 "#ifdef USESHADOWMAPORTHO\n"
@@ -1035,6 +1081,9 @@
 "#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"
@@ -1075,6 +1124,7 @@
 "#ifdef USEBOUNCEGRID\n"
 "uniform sampler3D Texture_BounceGrid;\n"
 "uniform float BounceGridIntensity;\n"
+"uniform highp mat4 BounceGridMatrix;\n"
 "#endif\n"
 "uniform highp float ClientTime;\n"
 "#ifdef USENORMALMAPSCROLLBLEND\n"
@@ -1269,14 +1319,24 @@
 "\n"
 "#ifdef USEBOUNCEGRID\n"
 "#ifdef USEBOUNCEGRIDDIRECTIONAL\n"
-"	myhalf4 bouncegrid_coeff1 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord                       )) * 2.0 + myhalf4(-1.0, -1.0, -1.0, -1.0);\n"
-"	myhalf4 bouncegrid_coeff2 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.25))) * 2.0 + myhalf4(-1.0, -1.0, -1.0, -1.0);\n"
-"	myhalf4 bouncegrid_coeff3 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.50))) * 2.0 + myhalf4(-1.0, -1.0, -1.0, -1.0);\n"
-"	// bouncegrid_coeff4 is the bentnormal (average light direction), if that is useful for anything (can be used for specular)\n"
-"//	myhalf4 bouncegrid_coeff4 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.75))) * 2.0 + myhalf4(-1.0, -1.0, -1.0, -1.0);\n"
-"	myhalf4 bouncegrid_dir = myhalf4((surfacenormal.x * VectorS.xyz + surfacenormal.y * VectorT.xyz + surfacenormal.z * VectorR.xyz), 1.0);\n"
-"	myhalf3 bouncegrid_light = myhalf3(dot(bouncegrid_coeff1, bouncegrid_dir), dot(bouncegrid_coeff2, bouncegrid_dir), dot(bouncegrid_coeff3, bouncegrid_dir));\n"
+"//	myhalf4 bouncegrid_coeff1 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord                        ));\n"
+"//	myhalf4 bouncegrid_coeff2 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.125))) * 2.0 + myhalf4(-1.0, -1.0, -1.0, -1.0);\n"
+"	myhalf4 bouncegrid_coeff3 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.250)));\n"
+"	myhalf4 bouncegrid_coeff4 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.375)));\n"
+"	myhalf4 bouncegrid_coeff5 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.500)));\n"
+"	myhalf4 bouncegrid_coeff6 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.625)));\n"
+"	myhalf4 bouncegrid_coeff7 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.750)));\n"
+"	myhalf4 bouncegrid_coeff8 = myhalf4(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord + vec3(0.0, 0.0, 0.875)));\n"
+"	myhalf3 bouncegrid_dir = normalize(mat3(BounceGridMatrix) * (surfacenormal.x * VectorS.xyz + surfacenormal.y * VectorT.xyz + surfacenormal.z * VectorR.xyz));\n"
+"	myhalf3 bouncegrid_dirp = max(myhalf3(0.0, 0.0, 0.0), bouncegrid_dir);\n"
+"	myhalf3 bouncegrid_dirn = max(myhalf3(0.0, 0.0, 0.0), -bouncegrid_dir);\n"
+"//	bouncegrid_dirp  = bouncegrid_dirn = myhalf3(1.0,1.0,1.0);\n"
+"	myhalf3 bouncegrid_light = myhalf3(\n"
+"		dot(bouncegrid_coeff3.xyz, bouncegrid_dirp) + dot(bouncegrid_coeff6.xyz, bouncegrid_dirn),\n"
+"		dot(bouncegrid_coeff4.xyz, bouncegrid_dirp) + dot(bouncegrid_coeff7.xyz, bouncegrid_dirn),\n"
+"		dot(bouncegrid_coeff5.xyz, bouncegrid_dirp) + dot(bouncegrid_coeff8.xyz, bouncegrid_dirn));\n"
 "	color.rgb += diffusetex * bouncegrid_light * BounceGridIntensity;\n"
+"//	color.rgb = bouncegrid_dir.rgb * 0.5 + vec3(0.5, 0.5, 0.5);\n"
 "#else\n"
 "	color.rgb += diffusetex * myhalf3(dp_texture3D(Texture_BounceGrid, BounceGridTexCoord)) * BounceGridIntensity;\n"
 "#endif\n"