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Differential D4036 Diff 12772 source/blender/editors/gpencil/drawgpencil.c

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source/blender/editors/gpencil/drawgpencil.c

Show First 20 Lines • Show All 168 Lines • ▼ Show 20 Lines if (tot_triangles > 0) {
immBegin(GPU_PRIM_TRIS, tot_triangles * 3); immBegin(GPU_PRIM_TRIS, tot_triangles * 3);
/* TODO: use batch instead of immediate mode, to share vertices */ /* TODO: use batch instead of immediate mode, to share vertices */
const tGPspoint *pt; const tGPspoint *pt;
for (int i = 0; i < tot_triangles; i++) { for (int i = 0; i < tot_triangles; i++) {
/* vertex 1 */ /* vertex 1 */
pt = &points[tmp_triangles[i][0]]; pt = &points[tmp_triangles[i][0]];
gp_set_tpoint_varying_color(pt, ink, color); gp_set_tpoint_varying_color(pt, ink, color);
immVertex2iv(pos, &pt->x); immVertex2fv(pos, &pt->x);
/* vertex 2 */ /* vertex 2 */
pt = &points[tmp_triangles[i][1]]; pt = &points[tmp_triangles[i][1]];
gp_set_tpoint_varying_color(pt, ink, color); gp_set_tpoint_varying_color(pt, ink, color);
immVertex2iv(pos, &pt->x); immVertex2fv(pos, &pt->x);
/* vertex 3 */ /* vertex 3 */
pt = &points[tmp_triangles[i][2]]; pt = &points[tmp_triangles[i][2]];
gp_set_tpoint_varying_color(pt, ink, color); gp_set_tpoint_varying_color(pt, ink, color);
immVertex2iv(pos, &pt->x); immVertex2fv(pos, &pt->x);
} }
immEnd(); immEnd();
immUnbindProgram(); immUnbindProgram();
} }
/* clear memory */ /* clear memory */
if (tmp_triangles) { if (tmp_triangles) {
Show All 31 Linesstatic void gp_draw_stroke_buffer(
const tGPspoint *pt = points; const tGPspoint *pt = points;
if (totpoints == 1) { if (totpoints == 1) {
/* if drawing a single point, draw it larger */ /* if drawing a single point, draw it larger */
GPU_point_size((float)(thickness + 2) * points->pressure); GPU_point_size((float)(thickness + 2) * points->pressure);
immBindBuiltinProgram(GPU_SHADER_3D_POINT_FIXED_SIZE_VARYING_COLOR); immBindBuiltinProgram(GPU_SHADER_3D_POINT_FIXED_SIZE_VARYING_COLOR);
immBegin(GPU_PRIM_POINTS, 1); immBegin(GPU_PRIM_POINTS, 1);
gp_set_tpoint_varying_color(pt, ink, color); gp_set_tpoint_varying_color(pt, ink, color);
immVertex2iv(pos, &pt->x); immVertex2fv(pos, &pt->x);
} }
else { else {
float oldpressure = points[0].pressure; float oldpressure = points[0].pressure;
/* draw stroke curve */ /* draw stroke curve */
GPU_line_width(max_ff(oldpressure * thickness, 1.0)); GPU_line_width(max_ff(oldpressure * thickness, 1.0));
immBindBuiltinProgram(GPU_SHADER_2D_SMOOTH_COLOR); immBindBuiltinProgram(GPU_SHADER_2D_SMOOTH_COLOR);
immBeginAtMost(GPU_PRIM_LINE_STRIP, totpoints); immBeginAtMost(GPU_PRIM_LINE_STRIP, totpoints);
/* TODO: implement this with a geometry shader to draw one continuous tapered stroke */ /* TODO: implement this with a geometry shader to draw one continuous tapered stroke */
for (int i = 0; i < totpoints; i++, pt++) { for (int i = 0; i < totpoints; i++, pt++) {
/* if there was a significant pressure change, stop the curve, change the thickness of the stroke, /* if there was a significant pressure change, stop the curve, change the thickness of the stroke,
* and continue drawing again (since line-width cannot change in middle of GL_LINE_STRIP) * and continue drawing again (since line-width cannot change in middle of GL_LINE_STRIP)
*/ */
if (fabsf(pt->pressure - oldpressure) > 0.2f) { if (fabsf(pt->pressure - oldpressure) > 0.2f) {
/* need to have 2 points to avoid immEnd assert error */ /* need to have 2 points to avoid immEnd assert error */
if (draw_points < 2) { if (draw_points < 2) {
gp_set_tpoint_varying_color(pt - 1, ink, color); gp_set_tpoint_varying_color(pt - 1, ink, color);
immVertex2iv(pos, &(pt - 1)->x); immVertex2fv(pos, &(pt - 1)->x);
} }
immEnd(); immEnd();
draw_points = 0; draw_points = 0;
GPU_line_width(max_ff(pt->pressure * thickness, 1.0f)); GPU_line_width(max_ff(pt->pressure * thickness, 1.0f));
immBeginAtMost(GPU_PRIM_LINE_STRIP, totpoints - i + 1); immBeginAtMost(GPU_PRIM_LINE_STRIP, totpoints - i + 1);
/* need to roll-back one point to ensure that there are no gaps in the stroke */ /* need to roll-back one point to ensure that there are no gaps in the stroke */
if (i != 0) { if (i != 0) {
gp_set_tpoint_varying_color(pt - 1, ink, color); gp_set_tpoint_varying_color(pt - 1, ink, color);
immVertex2iv(pos, &(pt - 1)->x); immVertex2fv(pos, &(pt - 1)->x);
draw_points++; draw_points++;
} }
oldpressure = pt->pressure; /* reset our threshold */ oldpressure = pt->pressure; /* reset our threshold */
} }
/* now the point we want */ /* now the point we want */
gp_set_tpoint_varying_color(pt, ink, color); gp_set_tpoint_varying_color(pt, ink, color);
immVertex2iv(pos, &pt->x); immVertex2fv(pos, &pt->x);
draw_points++; draw_points++;
} }
/* need to have 2 points to avoid immEnd assert error */ /* need to have 2 points to avoid immEnd assert error */
if (draw_points < 2) { if (draw_points < 2) {
gp_set_tpoint_varying_color(pt - 1, ink, color); gp_set_tpoint_varying_color(pt - 1, ink, color);
immVertex2iv(pos, &(pt - 1)->x); immVertex2fv(pos, &(pt - 1)->x);
} }
} }
immEnd(); immEnd();
immUnbindProgram(); immUnbindProgram();
// draw fill // draw fill
if (fill_ink[3] > GPENCIL_ALPHA_OPACITY_THRESH) { if (fill_ink[3] > GPENCIL_ALPHA_OPACITY_THRESH) {
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