diff options
author | Julian Eisel <eiseljulian@gmail.com> | 2017-04-05 02:28:48 +0300 |
---|---|---|
committer | Julian Eisel <eiseljulian@gmail.com> | 2017-04-05 02:33:10 +0300 |
commit | ebe1b4f11f6240811da407bcf5ce8176cb635d26 (patch) | |
tree | 3a8be89fbce587300a32e1f80edd0363a72225a5 /source/blender/editors/transform/transform_manipulator.c | |
parent | dd4de189dd7e345bbc9a9b14cfe726cedf21d3a2 (diff) |
Fix rotation manipulators not clipping
Added new shader for clipping, also cleaned up rotation manipulator
drawing code a bit.
This code should be replaced by new transform manipulators soon, just
keeping this working in the meanwhile.
Diffstat (limited to 'source/blender/editors/transform/transform_manipulator.c')
-rw-r--r-- | source/blender/editors/transform/transform_manipulator.c | 79 |
1 files changed, 53 insertions, 26 deletions
diff --git a/source/blender/editors/transform/transform_manipulator.c b/source/blender/editors/transform/transform_manipulator.c index a9b3363e0c8..ab5494ff39f 100644 --- a/source/blender/editors/transform/transform_manipulator.c +++ b/source/blender/editors/transform/transform_manipulator.c @@ -960,6 +960,22 @@ static void postOrtho(const bool ortho) } } +static void twmat_to_rotation_axis_mat( + const float twmat[4][4], const int axis, const bool ortho, + float r_axis_mat[4][4]) +{ + copy_m4_m4(r_axis_mat, twmat); + if (!ortho) { + orthogonalize_m4(r_axis_mat, axis); /* for gimbal */ + } + + if (ELEM(axis, 0, 1)) { + const char rot_axis = (axis == 0) ? 'Y' : 'X'; + const float angle = (axis == 0) ? M_PI_2 : -M_PI_2; + rotate_m4(r_axis_mat, rot_axis, angle); + } +} + BLI_INLINE bool manipulator_rotate_is_visible(const int drawflags) { return (drawflags & (MAN_ROT_X | MAN_ROT_Y | MAN_ROT_Z)); @@ -969,12 +985,11 @@ static void draw_manipulator_rotate( View3D *v3d, RegionView3D *rv3d, const int drawflags, const int combo, const bool is_moving, const bool is_picksel) { - double plane[4]; float matt[4][4]; float size, unitmat[4][4]; float cywid = 0.33f * 0.01f * (float)U.tw_handlesize; float cusize = cywid * 0.65f; - int arcs = (G.debug_value != 2); + bool arcs = (G.debug_value != 2); const int colcode = (is_moving) ? MAN_MOVECOL : MAN_RGB; bool ortho; @@ -994,17 +1009,9 @@ static void draw_manipulator_rotate( const unsigned pos = add_attrib(immVertexFormat(), "pos", GL_FLOAT, 3, KEEP_FLOAT); - immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR); - - - if (arcs) { - /* clipplane makes nice handles, calc here because of multmatrix but with translate! */ - copy_v3db_v3fl(plane, rv3d->viewinv[2]); - plane[3] = -0.02f * size; // clip just a bit more - glClipPlane(GL_CLIP_PLANE0, plane); - } /* sets view screen aligned */ gpuRotate3f(-360.0f * saacos(rv3d->viewquat[0]) / (float)M_PI, rv3d->viewquat[1], rv3d->viewquat[2], rv3d->viewquat[3]); + immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR); /* Screen aligned help circle */ if (arcs) { @@ -1063,7 +1070,7 @@ static void draw_manipulator_rotate( } /* axes */ - if (arcs == 0) { + if (arcs == false) { if (!is_picksel) { if ((combo & V3D_MANIP_SCALE) == 0) { /* axis */ @@ -1098,7 +1105,7 @@ static void draw_manipulator_rotate( } } - if (arcs == 0 && is_moving) { + if (arcs == false && is_moving) { /* Z circle */ if (drawflags & MAN_ROT_Z) { @@ -1133,43 +1140,63 @@ static void draw_manipulator_rotate( } // donut arcs if (arcs) { - glEnable(GL_CLIP_PLANE0); + float axis_model_mat[4][4]; + float clip_plane[4]; + + copy_v3_v3(clip_plane, rv3d->viewinv[2]); + clip_plane[3] = -dot_v3v3(rv3d->viewinv[2], rv3d->twmat[3]); + clip_plane[3] -= 0.02f * size; /* clip just a bit more so view aligned arcs are not visible */ + + gpuPopMatrix(); /* we setup our own matrix, pop previously set twmat */ + immUnbindProgram(); + immBindBuiltinProgram(GPU_SHADER_3D_CLIPPED_UNIFORM_COLOR); + immUniform4fv("ClipPlane", clip_plane); + + glEnable(GL_CLIP_DISTANCE0); /* Z circle */ if (drawflags & MAN_ROT_Z) { - preOrthoFront(ortho, rv3d->twmat, 2); if (is_picksel) GPU_select_load_id(MAN_ROT_Z); else manipulator_setcolor(v3d, 'Z', colcode, 255); + + twmat_to_rotation_axis_mat(rv3d->twmat, 2, ortho, axis_model_mat); + immUniformMatrix4fv("ModelMatrix", axis_model_mat); + gpuPushMatrix(); + gpuMultMatrix3D(axis_model_mat); + partial_doughnut(pos, cusize / 4.0f, 1.0f, 0, 48, 8, 48); - postOrtho(ortho); + gpuPopMatrix(); } /* X circle */ if (drawflags & MAN_ROT_X) { - preOrthoFront(ortho, rv3d->twmat, 0); if (is_picksel) GPU_select_load_id(MAN_ROT_X); else manipulator_setcolor(v3d, 'X', colcode, 255); + + twmat_to_rotation_axis_mat(rv3d->twmat, 0, ortho, axis_model_mat); + immUniformMatrix4fv("ModelMatrix", axis_model_mat); gpuPushMatrix(); - gpuRotateAxis(90.0, 'Y'); + gpuMultMatrix3D(axis_model_mat); + partial_doughnut(pos, cusize / 4.0f, 1.0f, 0, 48, 8, 48); gpuPopMatrix(); - postOrtho(ortho); } /* Y circle */ if (drawflags & MAN_ROT_Y) { - preOrthoFront(ortho, rv3d->twmat, 1); if (is_picksel) GPU_select_load_id(MAN_ROT_Y); else manipulator_setcolor(v3d, 'Y', colcode, 255); + + twmat_to_rotation_axis_mat(rv3d->twmat, 1, ortho, axis_model_mat); + immUniformMatrix4fv("ModelMatrix", axis_model_mat); gpuPushMatrix(); - gpuRotateAxis(-90.0, 'X'); + gpuMultMatrix3D(axis_model_mat); + partial_doughnut(pos, cusize / 4.0f, 1.0f, 0, 48, 8, 48); gpuPopMatrix(); - postOrtho(ortho); } - glDisable(GL_CLIP_PLANE0); + glDisable(GL_CLIP_DISTANCE0); } - - if (arcs == 0) { + else { /* Z handle on X axis */ if (drawflags & MAN_ROT_Z) { @@ -1213,8 +1240,8 @@ static void draw_manipulator_rotate( gpuPopMatrix(); postOrtho(ortho); } - } + /* Note: Shader is not ensured to be GPU_SHADER_3D_UNIFORM_COLOR from here on, twmat might have been popped too! */ /* restore */ gpuPopMatrix(); |