X-Git-Url: http://git.lukelau.me/?p=opengl.git;a=blobdiff_plain;f=texturevertex.glsl;fp=texturevertex.glsl;h=d8c97f4df3c9a73169770d7dcca7a512782a70fe;hp=0000000000000000000000000000000000000000;hb=ba9c738e8660304aa0341eb44118e63502a4a009;hpb=37cba564a96018a5500e942498d4e48c0ebe73ed

diff --git a/texturevertex.glsl b/texturevertex.glsl
new file mode 100644
index 0000000..d8c97f4
--- /dev/null
+++ b/texturevertex.glsl
@@ -0,0 +1,61 @@
+#version 330
+in vec3 vPosition;
+in vec4 vColor;
+in vec3 vNormal;
+in vec3 tangent;
+in vec3 bitangent;
+in vec2 vTexCoord;
+uniform mat4 model;
+uniform mat4 view;
+uniform mat4 projection;
+out vec3 defNormal;
+out vec2 texCoord;
+
+uniform vec3 vLightPos;
+uniform vec3 vViewPos;
+
+out vec3 lightPos;
+out vec3 viewPos;
+out vec3 fragPos;
+
+struct Material {
+	vec3 ambient;
+	vec3 diffuse;
+	sampler2D diffuseMap;
+	vec3 specular;
+	sampler2D specularMap;
+	float shininess;
+	
+	bool hasTexture;
+	bool hasSpecularMap;
+
+	sampler2D normalMap;
+	bool hasNormalMap;
+};
+
+uniform Material material;
+
+
+void main() {
+	vec4 pos = model * vec4(vPosition, 1.f);
+	defNormal = mat3(transpose(inverse(model))) * vNormal;
+	texCoord = vTexCoord;
+
+	//tangent space stuff
+	if (material.hasNormalMap) {
+		vec3 T = normalize(vec3(model * vec4(tangent,   0.0)));
+		vec3 B = normalize(vec3(model * vec4(bitangent, 0.0)));
+		vec3 N = normalize(vec3(model * vec4(vNormal,    0.0)));
+		// convert TBN to world->tangent space
+		mat3 TBN = transpose(mat3(T, B, N));
+		lightPos = TBN * vLightPos;
+		viewPos = TBN * vViewPos;
+		fragPos = TBN * vec3(pos);
+	} else {
+		lightPos = vLightPos;
+		viewPos = vViewPos;
+		fragPos = vec3(pos);
+	}
+	
+	gl_Position = projection * view * pos;
+}