mirror of
https://github.com/OpenMW/openmw.git
synced 2025-11-04 07:56:40 +00:00
e27437f8ed
- Consistent triangle alignment, fixes a noticable crack near the census and excise office. Note that alignment is still not the same as vanilla. Vanilla uses a weird diagonal pattern. I hope there aren't more trouble spots that will force us to replicate vanilla, but at least we can do that now. - Fixes several blending issues and cell border seams - Fix map render to use the terrain bounding box instead of an arbitrary height - Different LODs are now properly connected instead of using skirts - Support self shadowing - Normals and colors are stored in the vertices instead of a texture, this enables per-vertex lighting which should improve performance, fix compatibility issues due to the PS getting too large and mimic vanilla better - Support a fixed function fallback (though the splatting shader usually performs better) - Designed for distant land support - test: https://www.youtube.com/watch?v=2wnd9EuPJIY - we can't really enable this yet due to depth precision issues when using a large view distance
447 lines
14 KiB
GLSL
447 lines
14 KiB
GLSL
#include "core.h"
|
|
|
|
|
|
#define FOG @shGlobalSettingBool(fog)
|
|
|
|
#define SHADOWS_PSSM @shGlobalSettingBool(shadows_pssm)
|
|
#define SHADOWS @shGlobalSettingBool(shadows)
|
|
|
|
#if SHADOWS || SHADOWS_PSSM
|
|
#include "shadows.h"
|
|
#endif
|
|
|
|
#if FOG || SHADOWS_PSSM
|
|
#define NEED_DEPTH
|
|
#endif
|
|
|
|
#define NORMAL_MAP @shPropertyHasValue(normalMap)
|
|
#define EMISSIVE_MAP @shPropertyHasValue(emissiveMap)
|
|
#define DETAIL_MAP @shPropertyHasValue(detailMap)
|
|
|
|
// right now we support 2 UV sets max. implementing them is tedious, and we're probably not going to need more
|
|
#define SECOND_UV_SET (@shPropertyString(emissiveMapUVSet) || @shPropertyString(detailMapUVSet))
|
|
|
|
// if normal mapping is enabled, we force pixel lighting
|
|
#define VERTEX_LIGHTING (!@shPropertyHasValue(normalMap))
|
|
|
|
#define UNDERWATER @shGlobalSettingBool(render_refraction)
|
|
|
|
#define VERTEXCOLOR_MODE @shPropertyString(vertexcolor_mode)
|
|
|
|
#define VIEWPROJ_FIX @shGlobalSettingBool(viewproj_fix)
|
|
|
|
#ifdef SH_VERTEX_SHADER
|
|
|
|
// ------------------------------------- VERTEX ---------------------------------------
|
|
|
|
SH_BEGIN_PROGRAM
|
|
shUniform(float4x4, wvp) @shAutoConstant(wvp, worldviewproj_matrix)
|
|
|
|
shUniform(float4x4, textureMatrix0) @shAutoConstant(textureMatrix0, texture_matrix, 0)
|
|
|
|
#if (VIEWPROJ_FIX) || (SHADOWS)
|
|
shUniform(float4x4, worldMatrix) @shAutoConstant(worldMatrix, world_matrix)
|
|
#endif
|
|
|
|
#if VIEWPROJ_FIX
|
|
shUniform(float4, vpRow2Fix) @shSharedParameter(vpRow2Fix, vpRow2Fix)
|
|
shUniform(float4x4, vpMatrix) @shAutoConstant(vpMatrix, viewproj_matrix)
|
|
#endif
|
|
|
|
shVertexInput(float2, uv0)
|
|
#if SECOND_UV_SET
|
|
shVertexInput(float2, uv1)
|
|
#endif
|
|
shOutput(float4, UV)
|
|
|
|
shNormalInput(float4)
|
|
|
|
#if NORMAL_MAP
|
|
shTangentInput(float4)
|
|
shOutput(float3, tangentPassthrough)
|
|
#endif
|
|
|
|
#if !VERTEX_LIGHTING
|
|
shOutput(float3, normalPassthrough)
|
|
#endif
|
|
|
|
#ifdef NEED_DEPTH
|
|
shOutput(float, depthPassthrough)
|
|
#endif
|
|
|
|
shOutput(float3, objSpacePositionPassthrough)
|
|
|
|
#if VERTEXCOLOR_MODE != 0
|
|
shColourInput(float4)
|
|
#endif
|
|
|
|
#if VERTEXCOLOR_MODE != 0 && !VERTEX_LIGHTING
|
|
shOutput(float4, colourPassthrough)
|
|
#endif
|
|
|
|
#if VERTEX_LIGHTING
|
|
shUniform(float4, lightPosition[@shGlobalSettingString(num_lights)]) @shAutoConstant(lightPosition, light_position_view_space_array, @shGlobalSettingString(num_lights))
|
|
shUniform(float4, lightDiffuse[@shGlobalSettingString(num_lights)]) @shAutoConstant(lightDiffuse, light_diffuse_colour_array, @shGlobalSettingString(num_lights))
|
|
shUniform(float4, lightAttenuation[@shGlobalSettingString(num_lights)]) @shAutoConstant(lightAttenuation, light_attenuation_array, @shGlobalSettingString(num_lights))
|
|
shUniform(float4, lightAmbient) @shAutoConstant(lightAmbient, ambient_light_colour)
|
|
shUniform(float4x4, worldView) @shAutoConstant(worldView, worldview_matrix)
|
|
#if VERTEXCOLOR_MODE != 2
|
|
shUniform(float4, materialAmbient) @shAutoConstant(materialAmbient, surface_ambient_colour)
|
|
#endif
|
|
#if VERTEXCOLOR_MODE != 2
|
|
shUniform(float4, materialDiffuse) @shAutoConstant(materialDiffuse, surface_diffuse_colour)
|
|
#endif
|
|
#if VERTEXCOLOR_MODE != 1
|
|
shUniform(float4, materialEmissive) @shAutoConstant(materialEmissive, surface_emissive_colour)
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#if SHADOWS
|
|
shOutput(float4, lightSpacePos0)
|
|
shUniform(float4x4, texViewProjMatrix0) @shAutoConstant(texViewProjMatrix0, texture_viewproj_matrix)
|
|
#endif
|
|
|
|
#if SHADOWS_PSSM
|
|
@shForeach(3)
|
|
shOutput(float4, lightSpacePos@shIterator)
|
|
shUniform(float4x4, texViewProjMatrix@shIterator) @shAutoConstant(texViewProjMatrix@shIterator, texture_viewproj_matrix, @shIterator)
|
|
@shEndForeach
|
|
#if !VIEWPROJ_FIX
|
|
shUniform(float4x4, worldMatrix) @shAutoConstant(worldMatrix, world_matrix)
|
|
#endif
|
|
#endif
|
|
|
|
#if VERTEX_LIGHTING
|
|
shOutput(float4, lightResult)
|
|
shOutput(float3, directionalResult)
|
|
#endif
|
|
SH_START_PROGRAM
|
|
{
|
|
shOutputPosition = shMatrixMult(wvp, shInputPosition);
|
|
|
|
UV.xy = shMatrixMult (textureMatrix0, float4(uv0,0,1)).xy;
|
|
#if SECOND_UV_SET
|
|
UV.zw = uv1;
|
|
#endif
|
|
|
|
#if NORMAL_MAP
|
|
tangentPassthrough = tangent.xyz;
|
|
#endif
|
|
#if !VERTEX_LIGHTING
|
|
normalPassthrough = normal.xyz;
|
|
#endif
|
|
#if VERTEXCOLOR_MODE != 0 && !VERTEX_LIGHTING
|
|
colourPassthrough = colour;
|
|
#endif
|
|
|
|
#ifdef NEED_DEPTH
|
|
|
|
|
|
#if VIEWPROJ_FIX
|
|
float4x4 vpFixed = vpMatrix;
|
|
#if !SH_GLSL
|
|
vpFixed[2] = vpRow2Fix;
|
|
#else
|
|
vpFixed[0][2] = vpRow2Fix.x;
|
|
vpFixed[1][2] = vpRow2Fix.y;
|
|
vpFixed[2][2] = vpRow2Fix.z;
|
|
vpFixed[3][2] = vpRow2Fix.w;
|
|
#endif
|
|
|
|
float4x4 fixedWVP = shMatrixMult(vpFixed, worldMatrix);
|
|
|
|
depthPassthrough = shMatrixMult(fixedWVP, shInputPosition).z;
|
|
#else
|
|
depthPassthrough = shOutputPosition.z;
|
|
#endif
|
|
|
|
#endif
|
|
|
|
objSpacePositionPassthrough = shInputPosition.xyz;
|
|
|
|
#if SHADOWS
|
|
lightSpacePos0 = shMatrixMult(texViewProjMatrix0, shMatrixMult(worldMatrix, shInputPosition));
|
|
#endif
|
|
#if SHADOWS_PSSM
|
|
float4 wPos = shMatrixMult(worldMatrix, shInputPosition);
|
|
@shForeach(3)
|
|
lightSpacePos@shIterator = shMatrixMult(texViewProjMatrix@shIterator, wPos);
|
|
@shEndForeach
|
|
#endif
|
|
|
|
|
|
#if VERTEX_LIGHTING
|
|
float3 viewPos = shMatrixMult(worldView, shInputPosition).xyz;
|
|
float3 viewNormal = normalize(shMatrixMult(worldView, float4(normal.xyz, 0)).xyz);
|
|
|
|
float3 lightDir;
|
|
float d;
|
|
lightResult = float4(0,0,0,1);
|
|
@shForeach(@shGlobalSettingString(num_lights))
|
|
lightDir = lightPosition[@shIterator].xyz - (viewPos * lightPosition[@shIterator].w);
|
|
d = length(lightDir);
|
|
lightDir = normalize(lightDir);
|
|
|
|
|
|
#if VERTEXCOLOR_MODE == 2
|
|
lightResult.xyz += colour.xyz * lightDiffuse[@shIterator].xyz
|
|
* shSaturate(1.0 / ((lightAttenuation[@shIterator].y) + (lightAttenuation[@shIterator].z * d) + (lightAttenuation[@shIterator].w * d * d)))
|
|
* max(dot(viewNormal.xyz, lightDir), 0);
|
|
#else
|
|
lightResult.xyz += materialDiffuse.xyz * lightDiffuse[@shIterator].xyz
|
|
* shSaturate(1.0 / ((lightAttenuation[@shIterator].y) + (lightAttenuation[@shIterator].z * d) + (lightAttenuation[@shIterator].w * d * d)))
|
|
* max(dot(viewNormal.xyz, lightDir), 0);
|
|
#endif
|
|
|
|
#if @shIterator == 0
|
|
directionalResult = lightResult.xyz;
|
|
#endif
|
|
|
|
@shEndForeach
|
|
|
|
|
|
#if VERTEXCOLOR_MODE == 2
|
|
lightResult.xyz += lightAmbient.xyz * colour.xyz + materialEmissive.xyz;
|
|
lightResult.a *= colour.a;
|
|
#endif
|
|
#if VERTEXCOLOR_MODE == 1
|
|
lightResult.xyz += lightAmbient.xyz * materialAmbient.xyz + colour.xyz;
|
|
#endif
|
|
#if VERTEXCOLOR_MODE == 0
|
|
lightResult.xyz += lightAmbient.xyz * materialAmbient.xyz + materialEmissive.xyz;
|
|
#endif
|
|
|
|
#if VERTEXCOLOR_MODE != 2
|
|
lightResult.a *= materialDiffuse.a;
|
|
#endif
|
|
|
|
#endif
|
|
}
|
|
|
|
#else
|
|
|
|
// ----------------------------------- FRAGMENT ------------------------------------------
|
|
|
|
#if UNDERWATER
|
|
#include "underwater.h"
|
|
#endif
|
|
|
|
SH_BEGIN_PROGRAM
|
|
shSampler2D(diffuseMap)
|
|
|
|
#if NORMAL_MAP
|
|
shSampler2D(normalMap)
|
|
#endif
|
|
|
|
#if EMISSIVE_MAP
|
|
shSampler2D(emissiveMap)
|
|
#endif
|
|
|
|
#if DETAIL_MAP
|
|
shSampler2D(detailMap)
|
|
#endif
|
|
|
|
shInput(float4, UV)
|
|
|
|
#if NORMAL_MAP
|
|
shInput(float3, tangentPassthrough)
|
|
#endif
|
|
#if !VERTEX_LIGHTING
|
|
shInput(float3, normalPassthrough)
|
|
#endif
|
|
|
|
#ifdef NEED_DEPTH
|
|
shInput(float, depthPassthrough)
|
|
#endif
|
|
|
|
shInput(float3, objSpacePositionPassthrough)
|
|
|
|
#if VERTEXCOLOR_MODE != 0 && !VERTEX_LIGHTING
|
|
shInput(float4, colourPassthrough)
|
|
#endif
|
|
|
|
#if FOG
|
|
shUniform(float3, fogColour) @shAutoConstant(fogColour, fog_colour)
|
|
shUniform(float4, fogParams) @shAutoConstant(fogParams, fog_params)
|
|
#endif
|
|
|
|
#if SHADOWS
|
|
shInput(float4, lightSpacePos0)
|
|
shSampler2D(shadowMap0)
|
|
shUniform(float2, invShadowmapSize0) @shAutoConstant(invShadowmapSize0, inverse_texture_size, 1)
|
|
#endif
|
|
#if SHADOWS_PSSM
|
|
@shForeach(3)
|
|
shInput(float4, lightSpacePos@shIterator)
|
|
shSampler2D(shadowMap@shIterator)
|
|
shUniform(float2, invShadowmapSize@shIterator) @shAutoConstant(invShadowmapSize@shIterator, inverse_texture_size, @shIterator(1))
|
|
@shEndForeach
|
|
shUniform(float3, pssmSplitPoints) @shSharedParameter(pssmSplitPoints)
|
|
#endif
|
|
|
|
#if SHADOWS || SHADOWS_PSSM
|
|
shUniform(float4, shadowFar_fadeStart) @shSharedParameter(shadowFar_fadeStart)
|
|
#endif
|
|
|
|
#if (UNDERWATER) || (FOG)
|
|
shUniform(float4x4, worldMatrix) @shAutoConstant(worldMatrix, world_matrix)
|
|
shUniform(float4, cameraPos) @shAutoConstant(cameraPos, camera_position)
|
|
#endif
|
|
|
|
#if UNDERWATER
|
|
shUniform(float, waterLevel) @shSharedParameter(waterLevel)
|
|
shUniform(float, waterEnabled) @shSharedParameter(waterEnabled)
|
|
#endif
|
|
|
|
#if VERTEX_LIGHTING
|
|
shInput(float4, lightResult)
|
|
shInput(float3, directionalResult)
|
|
#else
|
|
shUniform(float, lightCount) @shAutoConstant(lightCount, light_count)
|
|
shUniform(float4, lightPosition[@shGlobalSettingString(num_lights)]) @shAutoConstant(lightPosition, light_position_view_space_array, @shGlobalSettingString(num_lights))
|
|
shUniform(float4, lightDiffuse[@shGlobalSettingString(num_lights)]) @shAutoConstant(lightDiffuse, light_diffuse_colour_array, @shGlobalSettingString(num_lights))
|
|
shUniform(float4, lightAttenuation[@shGlobalSettingString(num_lights)]) @shAutoConstant(lightAttenuation, light_attenuation_array, @shGlobalSettingString(num_lights))
|
|
shUniform(float4, lightAmbient) @shAutoConstant(lightAmbient, ambient_light_colour)
|
|
shUniform(float4x4, worldView) @shAutoConstant(worldView, worldview_matrix)
|
|
#if VERTEXCOLOR_MODE != 2
|
|
shUniform(float4, materialAmbient) @shAutoConstant(materialAmbient, surface_ambient_colour)
|
|
#endif
|
|
#if VERTEXCOLOR_MODE != 2
|
|
shUniform(float4, materialDiffuse) @shAutoConstant(materialDiffuse, surface_diffuse_colour)
|
|
#endif
|
|
#if VERTEXCOLOR_MODE != 1
|
|
shUniform(float4, materialEmissive) @shAutoConstant(materialEmissive, surface_emissive_colour)
|
|
#endif
|
|
#endif
|
|
|
|
SH_START_PROGRAM
|
|
{
|
|
shOutputColour(0) = shSample(diffuseMap, UV.xy);
|
|
|
|
#if DETAIL_MAP
|
|
#if @shPropertyString(detailMapUVSet)
|
|
shOutputColour(0) *= shSample(detailMap, UV.zw)*2;
|
|
#else
|
|
shOutputColour(0) *= shSample(detailMap, UV.xy)*2;
|
|
#endif
|
|
#endif
|
|
|
|
#if NORMAL_MAP
|
|
float3 normal = normalPassthrough;
|
|
float3 binormal = cross(tangentPassthrough.xyz, normal.xyz);
|
|
float3x3 tbn = float3x3(tangentPassthrough.xyz, binormal, normal.xyz);
|
|
|
|
#if SH_GLSL
|
|
tbn = transpose(tbn);
|
|
#endif
|
|
|
|
float3 TSnormal = shSample(normalMap, UV.xy).xyz * 2 - 1;
|
|
|
|
normal = normalize (shMatrixMult( transpose(tbn), TSnormal ));
|
|
#endif
|
|
|
|
#if !VERTEX_LIGHTING
|
|
float3 viewPos = shMatrixMult(worldView, float4(objSpacePositionPassthrough,1)).xyz;
|
|
float3 viewNormal = normalize(shMatrixMult(worldView, float4(normal.xyz, 0)).xyz);
|
|
|
|
float3 lightDir;
|
|
float d;
|
|
float4 lightResult = float4(0,0,0,1);
|
|
@shForeach(@shGlobalSettingString(num_lights))
|
|
lightDir = lightPosition[@shIterator].xyz - (viewPos * lightPosition[@shIterator].w);
|
|
d = length(lightDir);
|
|
lightDir = normalize(lightDir);
|
|
|
|
#if VERTEXCOLOR_MODE == 2
|
|
lightResult.xyz += colourPassthrough.xyz * lightDiffuse[@shIterator].xyz
|
|
* shSaturate(1.0 / ((lightAttenuation[@shIterator].y) + (lightAttenuation[@shIterator].z * d) + (lightAttenuation[@shIterator].w * d * d)))
|
|
* max(dot(viewNormal.xyz, lightDir), 0);
|
|
#else
|
|
lightResult.xyz += materialDiffuse.xyz * lightDiffuse[@shIterator].xyz
|
|
* shSaturate(1.0 / ((lightAttenuation[@shIterator].y) + (lightAttenuation[@shIterator].z * d) + (lightAttenuation[@shIterator].w * d * d)))
|
|
* max(dot(viewNormal.xyz, lightDir), 0);
|
|
#endif
|
|
|
|
#if @shIterator == 0
|
|
float3 directionalResult = lightResult.xyz;
|
|
#endif
|
|
|
|
@shEndForeach
|
|
|
|
|
|
#if VERTEXCOLOR_MODE == 2
|
|
lightResult.xyz += lightAmbient.xyz * colourPassthrough.xyz + materialEmissive.xyz;
|
|
lightResult.a *= colourPassthrough.a;
|
|
#endif
|
|
#if VERTEXCOLOR_MODE == 1
|
|
lightResult.xyz += lightAmbient.xyz * materialAmbient.xyz + colourPassthrough.xyz;
|
|
#endif
|
|
#if VERTEXCOLOR_MODE == 0
|
|
lightResult.xyz += lightAmbient.xyz * materialAmbient.xyz + materialEmissive.xyz;
|
|
#endif
|
|
|
|
#if VERTEXCOLOR_MODE != 2
|
|
lightResult.a *= materialDiffuse.a;
|
|
#endif
|
|
#endif
|
|
|
|
// shadows only for the first (directional) light
|
|
#if SHADOWS
|
|
float shadow = depthShadowPCF (shadowMap0, lightSpacePos0, invShadowmapSize0);
|
|
#endif
|
|
#if SHADOWS_PSSM
|
|
float shadow = pssmDepthShadow (lightSpacePos0, invShadowmapSize0, shadowMap0, lightSpacePos1, invShadowmapSize1, shadowMap1, lightSpacePos2, invShadowmapSize2, shadowMap2, depthPassthrough, pssmSplitPoints);
|
|
#endif
|
|
|
|
#if SHADOWS || SHADOWS_PSSM
|
|
float fadeRange = shadowFar_fadeStart.x - shadowFar_fadeStart.y;
|
|
float fade = 1-((depthPassthrough - shadowFar_fadeStart.y) / fadeRange);
|
|
shadow = (depthPassthrough > shadowFar_fadeStart.x) ? 1.0 : ((depthPassthrough > shadowFar_fadeStart.y) ? 1.0-((1.0-shadow)*fade) : shadow);
|
|
#endif
|
|
|
|
#if !SHADOWS && !SHADOWS_PSSM
|
|
float shadow = 1.0;
|
|
#endif
|
|
|
|
|
|
|
|
#if (UNDERWATER) || (FOG)
|
|
float3 worldPos = shMatrixMult(worldMatrix, float4(objSpacePositionPassthrough,1)).xyz;
|
|
#endif
|
|
|
|
#if UNDERWATER
|
|
float3 waterEyePos = intercept(worldPos, cameraPos.xyz - worldPos, float3(0,0,1), waterLevel);
|
|
#endif
|
|
|
|
#if SHADOWS || SHADOWS_PSSM
|
|
shOutputColour(0) *= (lightResult - float4(directionalResult * (1.0-shadow),0));
|
|
#else
|
|
shOutputColour(0) *= lightResult;
|
|
#endif
|
|
|
|
#if FOG
|
|
float fogValue = shSaturate((depthPassthrough - fogParams.y) * fogParams.w);
|
|
|
|
|
|
#if UNDERWATER
|
|
shOutputColour(0).xyz = shLerp (shOutputColour(0).xyz, UNDERWATER_COLOUR, shSaturate(length(waterEyePos-worldPos) / VISIBILITY));
|
|
#else
|
|
shOutputColour(0).xyz = shLerp (shOutputColour(0).xyz, fogColour, fogValue);
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#if EMISSIVE_MAP
|
|
#if @shPropertyString(emissiveMapUVSet)
|
|
shOutputColour(0).xyz += shSample(emissiveMap, UV.zw).xyz;
|
|
#else
|
|
shOutputColour(0).xyz += shSample(emissiveMap, UV.xy).xyz;
|
|
#endif
|
|
#endif
|
|
|
|
// prevent negative colour output (for example with negative lights)
|
|
shOutputColour(0).xyz = max(shOutputColour(0).xyz, float3(0,0,0));
|
|
}
|
|
|
|
#endif
|