Initial commit

engines/freescape/shaders/freescape_bitmap.fragment

@@ -0,0 +1,9 @@
+in vec2 Texcoord;
+
+OUTPUT
+
+uniform sampler2D tex;
+
+void main() {
+	outColor = texture(tex, Texcoord);
+}

engines/freescape/shaders/freescape_bitmap.vertex

@@ -0,0 +1,21 @@
+in vec2 position;
+in vec2 texcoord;
+
+uniform UBOOL flipY;
+
+out vec2 Texcoord;
+
+void main() {
+	Texcoord = texcoord;
+
+	vec2 pos = position;
+	// Coordinates are [0.0;1.0], transform to [-1.0; 1.0]
+	pos.x = pos.x * 2.0 - 1.0;
+	pos.y = -1.0 * (pos.y * 2.0 - 1.0);
+
+	if (UBOOL_TEST(flipY)) {
+		pos.y *= -1.0;
+	}
+
+	gl_Position = vec4(pos, 0.0, 1.0);
+}

engines/freescape/shaders/freescape_cubemap.fragment

@@ -0,0 +1,10 @@
+in vec2 TexCoord;
+
+OUTPUT
+
+uniform sampler2D skyTexture;
+
+void main()
+{
+	outColor = texture(skyTexture, TexCoord);
+}

engines/freescape/shaders/freescape_cubemap.vertex

@@ -0,0 +1,11 @@
+in vec3 position;
+in vec2 texcoord;
+
+uniform mat4 mvpMatrix;
+out vec2 TexCoord;
+
+void main()
+{
+	TexCoord = texcoord;
+    gl_Position = mvpMatrix * vec4(position, 1.0);
+}

engines/freescape/shaders/freescape_triangle.fragment

@@ -0,0 +1,42 @@
+OUTPUT
+
+uniform UBOOL useStipple;
+uniform int stipple[128];
+
+varying vec4 var_color;
+
+void main()
+{
+	if (UBOOL_TEST(useStipple)) {
+		// Calculate the 32x32 pattern coordinates
+		ivec2 coord = ivec2(gl_FragCoord.xy);
+
+		// Calculate the byte position and bit position within that byte
+		int x = int(mod(float(coord.x), 32.));
+		int y = int(mod(float(coord.y), 32.));
+
+		// Each row in the 32x32 pattern is represented by 4 bytes (4 * 8 bits = 32 bits)
+		int byteIndex = y * 4 + (x / 8);
+		int bitIndex = int(mod(float(x), 8.));
+
+		// Get the stipple pattern byte
+		int patternByte = 0;
+		for (int i = 0; i < 128; i++) {
+			if (i == byteIndex) {
+				patternByte = stipple[i];
+				break;
+			}
+		}
+
+		for (int i = 0; i < 7; i++) {
+			if (i >= 7 - bitIndex)
+				break;
+			patternByte = patternByte / 2;
+		}
+
+		if (int(mod(float(patternByte), 2.)) == 0)
+			discard;
+	}
+
+	outColor = var_color;
+}

engines/freescape/shaders/freescape_triangle.vertex

@@ -0,0 +1,12 @@
+in vec3 position;
+
+uniform mat4 mvpMatrix;
+uniform vec3 color;
+
+varying vec4 var_color;
+
+void main()
+{
+	var_color = vec4(color, 1.0);
+    gl_Position = mvpMatrix * vec4(position, 1.0);
+}