0.0 */ float4 windSnowLeafScale; ]]> 0) { mUVShiftTileF *= -1; } float mUVShiftTile1 = floor(mUVShiftTileF); mUVShift = mUVShiftTile1/8.0; #if defined(CHECKERBOARD_BLENDING) Out.texCoords2Weight = floor(saturate(2*(mUVShiftTileF-mUVShiftTile1) - 0.5)*4); #else Out.texCoords2Weight = saturate(2*(mUVShiftTileF-mUVShiftTile1) - 0.5); #endif mUVShift2 = mUVShift + 1.0/8.0; } #if defined(SEASONAL) mUVShift = frac(mUVShift)*0.5; mUVShift2 = frac(mUVShift2)*0.5; #endif #endif float3 sideVector = normalize(cross(camToPos, upVector)); // Wind animation float windXMovement = 0; float3 windDirection; windDirection.xz = normalize(float2(cShared1, cShared2)); windDirection.y = 0; float windStrength = cShared0*object.windSnowLeafScale.x; #if !defined(DEPTH_VIS) // avoid shadow artefacts by not animating in the shadow map if (windStrength > 0.0001) { float3 treePos = float3(object.modelMatrix[0][3] + invViewMatrix[0][3], object.modelMatrix[1][3] + invViewMatrix[1][3], object.modelMatrix[2][3] + invViewMatrix[2][3]); float3 windSideDirection = cross(float3(0,1,0), windDirection); float treeVarSeed = treePos.x + treePos.y + treePos.z; float3 trunkMoveDirection = windDirection; trunkMoveDirection = normalize(trunkMoveDirection + windSideDirection*sin(0.9 * cTime_s + treeVarSeed + 0.1)*0.3); float normalizedTreeY = In.position.y/30; float trunkOffsetScale = (1*max(windStrength-0.1,0)/0.9 + sin( 1.5 * cTime_s + treeVarSeed)*0.7*windStrength)*normalizedTreeY*normalizedTreeY; float3 trunkOffset = trunkMoveDirection.xyz * trunkOffsetScale; windXMovement = dot(trunkOffset, sideVector); } #endif // Allow scaling float xScale = length(float3(object.modelMatrix[0][0], object.modelMatrix[1][0], object.modelMatrix[2][0])); float xPos = In.position.x*xScale; float xOffset = xPos+windXMovement; #if defined(DEPTH_VIS) // restore camToPos as the object center camToPos = float3(object.modelMatrix[0][3], object.modelMatrix[1][3], object.modelMatrix[2][3]); #endif worldPosition = camToPos + sideVector*xOffset + upVector*In.position.y; prevWorldPosition = worldPosition; #if defined(DEPTH_VIS) worldPosition -= float3(invViewMatrix[0][2], invViewMatrix[1][2], invViewMatrix[2][2])*In.position.y*0.5; // ~45 degree tilt of the billboard to avoid self-shadowing #endif ]]> 0) ? object.windSnowLeafScale.w : (abs(treePos.x) + abs(treePos.y) + abs(treePos.z)); treePosSum = ceil(10.0 * treePosSum)/10.0; float x = 0.10812 * treePosSum; float y = 0.21237 * treePosSum; Out.randTintBranchDistance.x = abs(frac(x) - 0.5) * 2; // 0-1 range triangle wave Out.randTintBranchDistance.y = abs(frac(y) - 0.5) * 2; Out.randTintBranchDistance.z = 0.0; } float2 mUV = getDefaultTexCoords(In, object); Out.texCoordsWinter.xy = mUV*float2(0.5,0.5) + float2(0.5,0.0); Out.texCoordsWinter.zw = Out.texCoordsWinter.xy; Out.texCoordsSpring.xy = mUV*float2(0.5,0.5) + float2(0.0,0.5); Out.texCoordsSpring.zw = Out.texCoordsSpring.xy; Out.texCoordsSummer.xy = mUV*float2(0.5,0.5) + float2(0.5,0.5); Out.texCoordsSummer.zw = Out.texCoordsSummer.xy; Out.texCoordsAutumn.xy = mUV*float2(0.5,0.5) + float2(0.0,0.0); Out.texCoordsAutumn.zw = Out.texCoordsAutumn.xy; Out.texCoordsMask.xy = mUV; Out.texCoordsMask.zw = Out.texCoordsMask.xy; // Default trasition Summer to Autumn Out.defaultTexCoords = Out.texCoordsSummer.xy; #endif #if defined(BILLBOARD_180) Out.texCoords2 = Out.defaultTexCoords; Out.texCoords2.x += mUVShift2; Out.defaultTexCoords.x += mUVShift; #if defined(SEASONAL) Out.texCoordsWinter.z += mUVShift2; Out.texCoordsSpring.z += mUVShift2; Out.texCoordsSummer.z += mUVShift2; Out.texCoordsAutumn.z += mUVShift2; Out.texCoordsMask.z += mUVShift2*2; Out.texCoordsWinter.x += mUVShift; Out.texCoordsSpring.x += mUVShift; Out.texCoordsSummer.x += mUVShift; Out.texCoordsAutumn.x += mUVShift; Out.texCoordsMask.x += mUVShift*2; #endif #endif ]]> 0.0 && object.windSnowLeafScale.y > 0.0; ]]> = 0.70 && globals.gSeason < 1.50 ) { // 0.66 = August - fully dark green // 1.00 = September - half green/orange // 1.33 = October - fully orange mTransition = fitRangeFS(globals.gSeason,0.7,1.50,0.00,1.00); mColorLeavesTransition = mTransition*linearstepFS(mTransition+0.1,mTransition,mLeavesMaskTansition); // color of the leaves mColorLeaves = lerp(mColorSummer, mColorAutumn, mColorLeavesTransition); // combine it with branches diffuseColor = lerp(mColorBranches,mColorLeaves,mLeavesMask); } else if ( globals.gSeason >= 1.50 && globals.gSeason < 2.1 ) { // 1.66 = Novemner - half lost leaves // 2.00 = December - almost no leaves // 2.33 = January - no leaves mTransition = fitRangeFS(globals.gSeason,1.5,2.1,0.00,1.00); // color of the leaves mColorLeaves = mColorAutumn; float autumnToWinter = (1-mTransition) < 0.95*globals.gLeavesRand; globals.gAlpha = lerp(globals.gBranchesMask + globals.gLeavesGrow, globals.gBranchesMask, autumnToWinter); autumnToWinter = (1 - autumnToWinter)*globals.gLeavesMask; diffuseColor = lerp(mColorBranches,mColorLeaves,autumnToWinter); } else if ( globals.gSeason >= 2.1 && globals.gSeason < 2.6 ) { // 2.33 = January - no leaves // 2.66 = February - no leaves // 3.00 = March - small leaves diffuseColor = mColorBranches; globals.gAlpha = globals.gBranchesMask; } else if ( globals.gSeason >= 2.6 && globals.gSeason <= 4.0 ) { // 3.00 = March - small leaves // 3.33 = April - // 3.66 = May - fully spring green mTransition = fitRangeFS(globals.gSeason,2.6,4.0,0.00,1.00); // color of the leaves mColorLeaves = mColorSpring; float winterToSpring = mTransition <= 1-globals.gLeavesGrow + 0.45*globals.gLeavesRand; globals.gAlpha = lerp(globals.gBranchesMask + globals.gLeavesGrow, globals.gBranchesMask, winterToSpring); winterToSpring = (1 - winterToSpring)*globals.gLeavesMask; // combine it with branches diffuseColor = lerp(mColorBranches,mColorLeaves,winterToSpring); } #endif { // Snow mixing code if (globals.gIsSnowing){ // pixelShader normal computed before this point, right after PARALLAX_MAPPING_FS globals.gSnowMask = getSnowMask(object,normal,-0.05); diffuseColor.rgb = lerp( diffuseColor.rgb, globals.gSnowDiffuse.rgb, globals.gSnowMask ); } } ]]>