initial commit

shaders/ds_geom.glsl

@@ -0,0 +1,71 @@
+// vert //
+
+out vec3 geom_normal;
+out mat3 TBN;
+out vec4 object_color;
+
+void main(void) {
+	qgl_MaterialIndex = qgl_Material;
+	qgl_FragTexture = qgl_Texture;
+	gl_Position = qgl_ftransform();
+	
+	geom_normal = normalize(qgl_Normal * qgl_getNormalMatrix());
+	TBN = qgl_getTangentMatrix() * mat3(qgl_Tangent, qgl_Bitangent, qgl_Normal);
+	object_color = qgl_ObjectColor;
+}
+
+
+// frag //
+
+in vec3 geom_normal;
+in mat3 TBN;
+in vec4 object_color;
+
+uniform vec2 dt;
+uniform float z_near;
+
+const vec3 luma = vec3(0.299, 0.587, 0.114);
+const float _pe = 2.4e-7;
+
+void main(void) {
+	vec2 tc = qgl_FragTexture.xy;
+
+	vec4 diffuse = qgl_materialTexture(QGL_MAP_DIFFUSE, tc, vec4(0)) * object_color;
+	diffuse.rgb *= qgl_material[qgl_MaterialIndex].color_diffuse.rgb;
+	diffuse.a *= (1.f - qgl_material[qgl_MaterialIndex].transparency);
+
+	vec3 normal, dn;
+	dn = qgl_materialTexture(QGL_MAP_NORMAL, tc, -vec4(0.5, 0.5, 1., 0.)).xyz;
+	//dn.y = -dn.y;
+	float dn_sl = length(dn);
+	dn = TBN * dn;
+	dn *= dn_sl / (length(dn) + 1E-6);
+	normal = normalize(geom_normal + dn);
+	
+	float metalness = dot(qgl_materialTexture(QGL_MAP_METALNESS, tc, vec4(0)).rgb, luma);
+	metalness = clamp(metalness, 0, 1);
+	
+	float roughness = dot(qgl_materialTexture(QGL_MAP_ROUGHNESS, tc, vec4(0)).rgb, luma);
+	roughness = clamp(roughness, 0.0001, 0.9999);
+	
+	float reflectivity = clamp(qgl_material[qgl_MaterialIndex].reflectivity, 0., 1.);
+
+	vec4 emission = qgl_materialTexture(QGL_MAP_EMISSION, tc, vec4(0));
+	emission *= qgl_material[qgl_MaterialIndex].color_emission;
+
+	float height = dot(qgl_materialTexture(QGL_MAP_RELIEF, tc, vec4(0)).rgb, luma);
+	
+	float z = gl_FragCoord.z;
+	z = z + z - 1;
+	z = ((_pe - 2.) * z_near) / (z + _pe - 1.); // infinite depth
+
+	qgl_FragData[0] = vec4(diffuse .rgba);
+	qgl_FragData[1] = vec4(normal  .xyz, z);
+	qgl_FragData[2] = vec4(metalness, roughness, reflectivity, 0);
+	qgl_FragData[3] = vec4(emission.rgb, 0/*bn.x*/);
+	//qgl_FragData[4] = vec4(speed.xy, bn.yz);
+
+	//ivec2 itc = ivec2(gl_FragCoord.xy);
+	//qgl_FragData[0].rgb = vec3(dot(n,vec3(0,0,1)));
+	//qgl_FragData[0].rgb = diffuse.rgb * dot(n,vec3(0,0,1));
+}