stuff

modules/wallpaper-engine/shaders/generic2.vert

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+
+#include "common_vertex.h"
+
+uniform mat4 g_ModelMatrix;
+uniform mat4 g_ViewProjectionMatrix;
+uniform vec3 g_EyePosition;
+uniform vec3 g_LightsPosition[4];
+uniform vec3 g_LightAmbientColor;
+uniform vec3 g_LightSkylightColor;
+
+attribute vec3 a_Position;
+attribute vec3 a_Normal;
+attribute vec2 a_TexCoord;
+
+#if NORMALMAP
+attribute vec4 a_Tangent4;
+#else
+varying vec3 v_Normal;
+#endif
+
+varying vec3 v_ViewDir;
+varying vec2 v_TexCoord;
+
+varying vec4 v_Light0DirectionL3X;
+varying vec4 v_Light1DirectionL3Y;
+varying vec4 v_Light2DirectionL3Z;
+
+#if REFLECTION
+varying vec3 v_ScreenPos;
+#endif
+
+varying vec3 v_LightAmbientColor;
+
+void main() {
+	vec4 worldPos = mul(vec4(a_Position, 1.0), g_ModelMatrix);
+	gl_Position = mul(worldPos, g_ViewProjectionMatrix);
+	vec3 normal = normalize(mul(a_Normal, CAST3X3(g_ModelMatrix)));
+	v_TexCoord = a_TexCoord;
+
+#if REFLECTION
+	v_ScreenPos = gl_Position.xyw;
+#endif
+
+	v_ViewDir = g_EyePosition - worldPos.xyz;
+
+	v_Light0DirectionL3X.xyz = g_LightsPosition[0] - worldPos.xyz;
+	v_Light1DirectionL3Y.xyz = g_LightsPosition[1] - worldPos.xyz;
+	v_Light2DirectionL3Z.xyz = g_LightsPosition[2] - worldPos.xyz;
+
+	vec3 l3 = g_LightsPosition[3] - worldPos.xyz;
+
+#if NORMALMAP
+	mat3 tangentSpace = BuildTangentSpace(CAST3X3(g_ModelMatrix), a_Normal, a_Tangent4);
+
+#ifdef VERSION
+	tangentSpace[0] = normalize(tangentSpace[0]);
+	tangentSpace[1] = normalize(tangentSpace[1]);
+	tangentSpace[2] = normalize(tangentSpace[2]);
+#endif
+
+	v_Light0DirectionL3X.xyz = mul(tangentSpace, v_Light0DirectionL3X.xyz);
+	v_Light1DirectionL3Y.xyz = mul(tangentSpace, v_Light1DirectionL3Y.xyz);
+	v_Light2DirectionL3Z.xyz = mul(tangentSpace, v_Light2DirectionL3Z.xyz);
+	l3 = mul(tangentSpace, l3);
+	v_ViewDir = mul(tangentSpace, v_ViewDir);
+#else
+	v_Normal = normal;
+#endif
+
+	v_Light0DirectionL3X.w = l3.x;
+	v_Light1DirectionL3Y.w = l3.y;
+	v_Light2DirectionL3Z.w = l3.z;
+	v_LightAmbientColor = mix(g_LightSkylightColor, g_LightAmbientColor, dot(normal, vec3(0, 1, 0)) * 0.5 + 0.5);
+}