Track whether implicit shader data needs to be re-applied

[libs/gl.git] / source / renderer.cpp

diff --git a/source/renderer.cpp b/source/renderer.cpp
index 8daa13ce414bbc508a6924064ac282392a7bfb5c..3ddb3a6553acd3e1c9ae1593d40dc639e7a07ece 100644 (file)
--- a/source/renderer.cpp
+++ b/source/renderer.cpp
@@ -92,6 +92,7 @@ unsigned Renderer::allocate_effect_texunit()
 void Renderer::set_material(const Material *m)
 {
        state->material = m;
+       changed |= MATERIAL_SHDATA;
 }
 
 void Renderer::set_lighting(const Lighting *l)
@@ -99,7 +100,10 @@ void Renderer::set_lighting(const Lighting *l)
        state->lighting = l;
        state->lighting_matrix = mtx_stack.top();
        if(l)
+       {
                l->update_shader_data(standard_shdata, mtx_stack.top());
+               changed |= STANDARD_SHDATA;
+       }
        changed |= LIGHTING;
 }
 
@@ -305,12 +309,20 @@ void Renderer::apply_state()
                                LinAl::SquareMatrix<float, 3> nm = m.block<3, 3>(0, 0);
                                nm = transpose(invert(nm));
                                standard_shdata.uniform_matrix3("eye_obj_normal_matrix", &nm(0, 0));
-                               changed &= ~MODERN_MATRIX;
+                               changed = (changed&~MODERN_MATRIX)|STANDARD_SHDATA;
                        }
 
-                       if(state->material)
+                       if(state->material && (changed&MATERIAL_SHDATA))
+                       {
                                state->material->get_shader_data().apply();
-                       standard_shdata.apply();
+                               changed &= ~MATERIAL_SHDATA;
+                       }
+
+                       if(changed&STANDARD_SHDATA)
+                       {
+                               standard_shdata.apply();
+                               changed &= ~STANDARD_SHDATA;
+                       }
                }
 
                if((changed&SHADER_DATA) || shprog_changed)