From 4e932c56792b332ef645131ad7b72a932e626c92 Mon Sep 17 00:00:00 2001 From: Germano Cavalcante Date: Mon, 11 Apr 2022 16:46:09 -0300 Subject: Snap Utilities Line: update to new 'GPUShaderCreateInfo' --- .../snap_context_l/mesh_drawing.py | 127 ++++++++++++++++----- 1 file changed, 99 insertions(+), 28 deletions(-) diff --git a/mesh_snap_utilities_line/snap_context_l/mesh_drawing.py b/mesh_snap_utilities_line/snap_context_l/mesh_drawing.py index 02bd3f43..36429f63 100644 --- a/mesh_snap_utilities_line/snap_context_l/mesh_drawing.py +++ b/mesh_snap_utilities_line/snap_context_l/mesh_drawing.py @@ -2,16 +2,10 @@ import gpu import bmesh +import ctypes from mathutils import Matrix -def load_shader(shadername): - from os import path - - with open(path.join(path.dirname(__file__), "shaders", shadername), "r") as f: - return f.read() - - def get_mesh_vert_co_array(me): tot_vco = len(me.vertices) if tot_vco: @@ -183,10 +177,14 @@ class GPU_Indices_Mesh: _Hash = {} shader = None + UBO_data = None + UBO = None @classmethod def end_opengl(cls): del cls.shader + del cls.UBO + del cls.UBO_data del cls @@ -203,14 +201,80 @@ class GPU_Indices_Mesh: atexit.unregister(cls.end_opengl) atexit.register(cls.end_opengl) - cls.shader = gpu.types.GPUShader( - load_shader("ID_color_vert.glsl"), - load_shader("ID_color_frag.glsl"), - defines="#define USE_CLIP_PLANES\n", + shader_info = gpu.types.GPUShaderCreateInfo() + + shader_info.define("USE_CLIP_PLANES") + shader_info.typedef_source( + "struct Data {\n" + "#ifdef USE_CLIP_PLANES\n" + " mat4 ModelMatrix;" + " vec4 WorldClipPlanes[4];\n" + "#endif\n" + " int offset;\n" + "#ifdef USE_CLIP_PLANES\n" + " bool use_clip_planes;\n" + "#endif\n" + "};\n" + ) + shader_info.push_constant("MAT4", "ModelViewProjectionMatrix") + shader_info.uniform_buf(0, "Data", "g_data") + shader_info.vertex_in(0, "VEC3", "pos") + shader_info.vertex_source( + # #define USE_CLIP_PLANES + # uniform mat4 ModelViewProjectionMatrix; + # uniform Data g_data; + # in vec3 pos; + "void main()" + "{\n" + "#ifdef USE_CLIP_PLANES\n" + " if (g_data.use_clip_planes) {" + " vec4 wpos = g_data.ModelMatrix * vec4(pos, 1.0);" + " gl_ClipDistance[0] = dot(g_data.WorldClipPlanes[0], wpos);" + " gl_ClipDistance[1] = dot(g_data.WorldClipPlanes[1], wpos);" + " gl_ClipDistance[2] = dot(g_data.WorldClipPlanes[2], wpos);" + " gl_ClipDistance[3] = dot(g_data.WorldClipPlanes[3], wpos);" + " }\n" + "#endif\n" + " gl_Position = ModelViewProjectionMatrix * vec4(pos, 1.0);" + "}" + ) + + shader_info.fragment_out(0, "UINT", "fragColor") + shader_info.fragment_source( + # out uint fragColor; + "void main() {fragColor = uint(gl_PrimitiveID + g_data.offset);}" + ) + + cls.shader = gpu.shader.create_from_info(shader_info) + + class _UBO_struct(ctypes.Structure): + _pack_ = 16 + _fields_ = [ + ("ModelMatrix", 4 * (4 * ctypes.c_float)), + ("WorldClipPlanes", 4 * (4 * ctypes.c_float)), + ("offset", ctypes.c_int), + ("use_clip_planes", ctypes.c_bool), + ("_pad", ctypes.c_char * 11), + ] + + cls.UBO_data = _UBO_struct() + cls.UBO = gpu.types.GPUUniformBuf( + gpu.types.Buffer("UBYTE", ctypes.sizeof(cls.UBO_data), cls.UBO_data) ) - cls.unif_offset = cls.shader.uniform_from_name("offset") - cls.use_clip_planes = False + @staticmethod + def update_UBO(): + print("update") + cls = GPU_Indices_Mesh + cls.UBO.update( + gpu.types.Buffer( + "UBYTE", + ctypes.sizeof(cls.UBO_data), + cls.UBO_data, + ) + ) + cls.shader.bind() + cls.shader.uniform_block("g_data", cls.UBO) def __init__(self, depsgraph, obj, draw_tris, draw_edges, draw_verts): self.ob_data = obj.original.data @@ -326,12 +390,17 @@ class GPU_Indices_Mesh: gpu.matrix.multiply_matrix(ob_mat) self.shader.bind() - if GPU_Indices_Mesh.use_clip_planes: + if GPU_Indices_Mesh.UBO_data.use_clip_planes: gpu.state.clip_distances_set(4) - self.shader.uniform_float("ModelMatrix", ob_mat) + self.UBO_data.ModelMatrix[0] = ob_mat[0][:] + self.UBO_data.ModelMatrix[1] = ob_mat[1][:] + self.UBO_data.ModelMatrix[2] = ob_mat[2][:] + self.UBO_data.ModelMatrix[3] = ob_mat[3][:] if self.draw_tris: - self.shader.uniform_int("offset", (index_offset,)) + self.UBO_data.offset = index_offset + self.update_UBO() + self.batch_tris.draw(self.shader) index_offset += len(self.tri_verts) @@ -356,17 +425,21 @@ class GPU_Indices_Mesh: gpu.matrix.load_projection_matrix(winmat) if self.draw_edges: - self.shader.uniform_int("offset", (index_offset,)) + self.UBO_data.offset = index_offset + self.update_UBO() + # bgl.glLineWidth(3.0) self.batch_edges.draw(self.shader) # bgl.glLineWidth(1.0) index_offset += len(self.edge_verts) if self.draw_verts: - self.shader.uniform_int("offset", (index_offset,)) + self.UBO_data.offset = index_offset + self.update_UBO() + self.batch_lverts.draw(self.shader) - if GPU_Indices_Mesh.use_clip_planes: + if GPU_Indices_Mesh.UBO_data.use_clip_planes: gpu.state.clip_distances_set(0) gpu.matrix.pop() @@ -426,18 +499,16 @@ def gpu_Indices_restore_state(): def gpu_Indices_use_clip_planes(rv3d, value): GPU_Indices_Mesh.init_opengl() - shader = GPU_Indices_Mesh.shader - shader.bind() if value and rv3d.use_clip_planes: - GPU_Indices_Mesh.use_clip_planes = True - planes = gpu.types.Buffer("FLOAT", (6, 4), rv3d.clip_planes) - shader.uniform_vector_float( - shader.uniform_from_name("WorldClipPlanes"), planes, 4, 4 - ) + GPU_Indices_Mesh.UBO_data.use_clip_planes = True + GPU_Indices_Mesh.UBO_data.WorldClipPlanes[0] = rv3d.clip_planes[0][:] + GPU_Indices_Mesh.UBO_data.WorldClipPlanes[1] = rv3d.clip_planes[1][:] + GPU_Indices_Mesh.UBO_data.WorldClipPlanes[2] = rv3d.clip_planes[2][:] + GPU_Indices_Mesh.UBO_data.WorldClipPlanes[3] = rv3d.clip_planes[3][:] else: - GPU_Indices_Mesh.use_clip_planes = False + GPU_Indices_Mesh.UBO_data.use_clip_planes = False - shader.uniform_bool("use_clip_planes", (GPU_Indices_Mesh.use_clip_planes,)) + GPU_Indices_Mesh.update_UBO() def gpu_Indices_mesh_cache_clear(): -- cgit v1.2.3