Initial commit

data/shaders/dx11/renderchunk.vertex.hlsl

@@ -0,0 +1,123 @@
+#include "ShaderConstants.fxh"
+
+struct VS_Input {
+	float3 position : POSITION;
+	float4 color : COLOR;
+	float2 uv0 : TEXCOORD_0;
+	float2 uv1 : TEXCOORD_1;
+#ifdef INSTANCEDSTEREO
+	uint instanceID : SV_InstanceID;
+#endif
+};
+
+
+struct PS_Input {
+	float4 position : SV_Position;
+	lpfloat4 color : COLOR;
+	snorm float2 uv0 : TEXCOORD_0_FB_MSAA;
+	snorm float2 uv1 : TEXCOORD_1_FB_MSAA;
+
+#ifdef NEAR_WATER
+	float cameraDist : TEXCOORD_2;
+#endif
+
+#ifdef FOG
+	float4 fogColor : FOG_COLOR;
+#endif
+#ifdef INSTANCEDSTEREO
+	uint instanceID : SV_InstanceID;
+#endif
+};
+
+
+static const float rA = 1.0;
+static const float rB = 1.0;
+static const float3 UNIT_Y = float3(0, 1, 0);
+static const float DIST_DESATURATION = 56.0 / 255.0; //WARNING this value is also hardcoded in the water color, don'tchange
+
+
+void main(in VS_Input VSInput, out PS_Input PSInput) {
+	PSInput.uv0 = VSInput.uv0;
+	PSInput.uv1 = VSInput.uv1;
+	PSInput.color = VSInput.color;
+
+#ifdef AS_ENTITY_RENDERER
+	#ifdef INSTANCEDSTEREO
+		int i = VSInput.instanceID;
+		PSInput.position = mul(WORLDVIEWPROJ_STEREO[i], float4(VSInput.position, 1));
+		PSInput.instanceID = i;
+	#else
+		PSInput.position = mul(WORLDVIEWPROJ, float4(VSInput.position, 1));
+	#endif
+		float3 worldPos = PSInput.position;
+#else
+		float3 worldPos = (VSInput.position.xyz * CHUNK_ORIGIN_AND_SCALE.w) + CHUNK_ORIGIN_AND_SCALE.xyz;
+	
+		// Transform to view space before projection instead of all at once to avoid floating point errors
+		// Not required for entities because they are already offset by camera translation before rendering
+		// World position here is calculated above and can get huge
+	#ifdef INSTANCEDSTEREO
+		int i = VSInput.instanceID;
+	
+		PSInput.position = mul(WORLDVIEW_STEREO[i], float4(worldPos, 1 ));
+		PSInput.position = mul(PROJ_STEREO[i], PSInput.position);
+	
+		PSInput.instanceID = i;
+	#else
+		PSInput.position = mul(WORLDVIEW, float4( worldPos, 1 ));
+		PSInput.position = mul(PROJ, PSInput.position);
+	#endif
+#endif
+
+///// find distance from the camera
+
+#if defined(FOG) || defined(NEAR_WATER)
+	#ifdef FANCY
+		float3 relPos = -worldPos;
+		float cameraDepth = length(relPos);
+		#ifdef NEAR_WATER
+			PSInput.cameraDist = cameraDepth / FAR_CHUNKS_DISTANCE;
+		#endif
+	#else
+		float cameraDepth = PSInput.position.z;
+		#ifdef NEAR_WATER
+			float3 relPos = -worldPos;
+			float cameraDist = length(relPos);
+			PSInput.cameraDist = cameraDist / FAR_CHUNKS_DISTANCE;
+		#endif
+	#endif
+#endif
+
+	///// apply fog
+
+#ifdef FOG
+	float len = cameraDepth / RENDER_DISTANCE;
+#ifdef ALLOW_FADE
+	len += CURRENT_COLOR.r;
+#endif
+
+	PSInput.fogColor.rgb = FOG_COLOR.rgb;
+	PSInput.fogColor.a = clamp((len - FOG_CONTROL.x) / (FOG_CONTROL.y - FOG_CONTROL.x), 0.0, 1.0);
+#endif
+
+	///// water magic
+#ifdef NEAR_WATER
+#ifdef FANCY  /////enhance water
+	float F = dot(normalize(relPos), UNIT_Y);
+	F = 1.0 - max(F, 0.1);
+	F = 1.0 - lerp(F*F*F*F, 1.0, min(1.0, cameraDepth / FAR_CHUNKS_DISTANCE));
+
+	PSInput.color.rg -= float2(float(F * DIST_DESATURATION).xx);
+
+	float4 depthColor = float4(PSInput.color.rgb * 0.5, 1.0);
+	float4 traspColor = float4(PSInput.color.rgb * 0.45, 0.8);
+	float4 surfColor = float4(PSInput.color.rgb, 1.0);
+
+	float4 nearColor = lerp(traspColor, depthColor, PSInput.color.a);
+	PSInput.color = lerp(surfColor, nearColor, F);
+#else
+	PSInput.color.a = PSInput.position.z / FAR_CHUNKS_DISTANCE + 0.5;
+#endif //FANCY
+#endif
+
+}