Use ssbos for edge shadows

Seems quite slow as is
2025-11-11 16:23:39 +00:00
parent 219c574931
commit c5034b3c4c
5 changed files with 102 additions and 9 deletions
@@ -186,12 +186,17 @@ renderShadows shadrendertype nWalls nSils nCaps positiontexture normaltexture li
                glUseProgram (_shaderUINT llinesShad)
                glUniform3f 0 x y z
                glUniform1f 1 rad
-                glBindVertexArray (_vaoName $ _shaderVAO llinesShad)
-                glDrawElements
-                    (_unPrimitiveMode $ _shaderPrimitive llinesShad)
-                    (fromIntegral nSils)
-                    GL_UNSIGNED_INT
-                    nullPtr
+                --glBindVertexArray (_vaoName $ _shaderVAO llinesShad)
+                glBindVertexArray (pdata ^. dummyVAO . vaoName)
+                glDrawArrays
+                    GL_TRIANGLES
+                    0
+                    ((fromIntegral nSils * 6) `div` 4)
+                --glDrawElements
+                --    (_unPrimitiveMode $ _shaderPrimitive llinesShad)
+                --    (fromIntegral nSils)
+                --    GL_UNSIGNED_INT
+                --    nullPtr
                --draw caps on the near plane as required
                glEnable GL_CULL_FACE
                glCullFace GL_FRONT