testing uniforms and shaders

src/visual/src/pipeline.cpp

@@ -2,6 +2,7 @@
 #include "pw/core/matrix.hpp"
 #include "pw/core/mesh.hpp"
 #include "pw/core/timer.hpp"
+#include "pw/core/axisangle.hpp"
 
 #include "pw/core/debug.hpp"
 #include "pw/visual/pipeline.hpp"
@@ -118,11 +119,11 @@ struct triangle_renderer
 
 		const char* vertex_shader_2 = R"(
 				#version 400
+                uniform mat4 model_mat;
 				in vec3 vertex_p;
-				in vec3 normal_p;
 
 				void main() {
-					gl_Position = vec4(vp, 1.0);
+                    gl_Position = model_mat * vec4(vertex_p, 1.0);
 				}
 				)";
 
@@ -134,36 +135,37 @@ struct triangle_renderer
 				  frag_colour = input_color;
 				})";
 
-
+        shader_p.set_source(vertex_shader_2,shader::vertex);
         shader_p.set_source(fragment_shader,shader::fragment);
-        shader_p.set_source(vertex_shader,shader::vertex);
 
 		if (!shader_p.build())
 			exit(-1);
-
-
     }
 
     void draw()
     {
 		double t0 = timer::now();
 
-		shader_p.use();
+        shader_p.use();
 
 		static float v = 0.0f;
 		v+= 0.01f;
 		if (v>1.0f) v = 0.0f;
 		vector4f test({0.5f,1-v,v,1.0f});
 
+        matrix4x4f model_mat; model_mat.set_identity();
+
+        axisangle rot(vector3::right(),v);
+        model_mat = rot.to_matrix();
+
+        // highly inefficient - should be cached -
 		shader_p.bind("input_color",test);
+        shader_p.bind("model_mat",model_mat);
 
 		amesh_renderer.draw();
 
 		debug::d() << 100 * (timer::now() - t0) << "ms";
 
-//        glBindVertexArray(vao);
-        // draw points 0-3 from the currently bound VAO with current in-use shader
-//        glDrawArrays(GL_TRIANGLES, 0, 3);
     }
 };
 

src/visual/src/shader.cpp

@@ -185,6 +185,11 @@ shader &shader::bind(int location, const vector4f &v)
 	_impl->bind(location,v); return *this;
 }
 
+shader &shader::bind(int location, const matrix4x4f &v)
+{
+    _impl->bind(location,v); return *this;
+}
+
 bool shader::build()
 {
 	return _impl->build();